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Academic literature on the topic 'Sodium sulfonates'

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Published: 4 June 2021
Last updated: 20 February 2023

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Journal articles on the topic "Sodium sulfonates"

1

Bindu Nair. "Final Report On the Safety Assessment of Sodium Alpha-Olefin Sulfonates." International Journal of Toxicology 17, no. 5_suppl (October 1998): 39–65. http://dx.doi.org/10.1177/109158189801700504.

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Sodium C14-16 OlefinSulfonate, Sodium C12-14 Olefin Sulfonate, Sodium C 14-18 Olefin Sulfonate, and Sodium C16-18 Olefin Sulfonate are the Sodium α-Olefin Sulfonates used in cosmetics as surfactant-cleansing agents. The highest concentration reportedly is 16% in shampoos and bath and shower products. These ingredients are a mixture of long-chain sulfonate salts prepared by sulfonation of α-olefins of various carbon chain lengths noted as subscripts. In the manufacture of these ingredients, delta and gamma sultones may be produced. Sodium α-Olefin Sulfonates are poorly absorbed through normal skin, but are significantly absorbed through damaged skin. Acute oral LD50 values were 1.3 2.4g/kg in rats and 2.5-4.3 g/kg in mice. Short-term toxicity studies using rats showed no consistent effects, even with exposures in the 0.5-1.0 g/kg range. Concentrations above 10% produced moderate ocular irritation and a concentration of 5% produced mild ocular irritation in rabbits. In reproductive and developmental toxicity studies, fetal abnormalities were noted, but only at doses that were maternally toxic. Genotoxicity data were mostly negative and oral and dermal carcinogenicity studies were negative. Various animal and clinical studies found irritation and sensitization. Sensitization was attributed to low level gamma sultone residues. Because gamma sultones are demonstrated sensitizers at very low levels, it was concluded that any product containing Sodium α-Olefin Sulfonates should have very little gamma sultone residues. The gamma sultone levels should not exceed 10 ppm for saturated (alkane) sultones, 1 ppm for chloro-sultones, and 0.1 ppm for unsaturated sultones. Sodium α-Olefin Sulfonates are otherwise considered safe for use in rinse-off products. Based on concerns about irritation, were Sodium α-Olefin Sulfonates to be used in leave-on products, it was concluded that concentrations should not exceed 2% for such uses.
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2

Johnson, MD, and VC Reinsborough. "Binding Constants for Cyclodextrin Inclusions by Competitive Spectrofluorometry Involving 6-(p-Toluidino)naphthalene-2-sulfonate." Australian Journal of Chemistry 45, no. 12 (1992): 1961. http://dx.doi.org/10.1071/ch9921961.

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Binding constants of derivatized and simple β-cyclodextrins with a variety of inclusates were determined spectrofluorometrically through competition with 6-(p- toluidino )naphthalene- 2-sulfonate ( tns ). Inclusates in addition to tns were sodium alkane-1-sulfonates, sodium tetraphenylborate, sodium tetrafluoroborate, pyrazine and 4,4'-bipyridine.
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3

Ioannou, Panayiotis V., and Gerasimos M. Tsivgoulis. "Preparation of (mono)sulfonates: Suitable precursors for unnatural sulfonolipids." Main Group Chemistry 20, no. 2 (July 22, 2021): 103–18. http://dx.doi.org/10.3233/mgc-210014.

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Aiming at the preparation of the novel unnatural, non-isosteric sulfonolipids bearing one, two and three acyl groups 8, 9 and 10, their precursors hydroxyl-containing sulfonates have been prepared from a variety of hydroxyl-containing halogenides and epoxides using the Strecker reaction. Thus, the sulfonates 16 and 22 were prepared pure, while the sulfonate 27 could only be prepared as a by-product using 1,4-dibromo-2,3-butanediol 26 and in low yields. For these reactions, probable pathways leading to the isolated or spectroscopically identified products are proposed. Conclusions about the relative nucleophilicity of SO32- compared to AsO33 - (as well as HO- which is present in their aqueous solutions) were drawn based on the yields of the corresponding arsonic acids and sodium sulfonates. The IR (KBr) and 1H NMR (D2O) spectra of sulfonates (and in some cases of their sulfonic acids) are analyzed and discussed.
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4

Cheng, Tingting, Lan Xu, and Mingdi Wang. "Effect of surface active agent on bubble-electrospun polyacrylonitrile nanofibers." Thermal Science 23, no. 4 (2019): 2481–87. http://dx.doi.org/10.2298/tsci1904481c.

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Sodium dodecyl benzene sulfonates were used as a surfactant to obtain polyacrylonitrile nanofibers by a modified bubble-electrospinning using a copper cone-shaped air nozzle. The properties of the electrospun solutions were investigated using viscosity meter, conductivity meter and rheometer, and the effects of sodium dodecyl benzene sulfonates concentration on the morphology, mechanical property and production of polyacrylonitrile nanofibers were studied. The results showed the addition of sodium dodecyl benzene sulfonates could effectively decrease the viscosity of the solution, increase the electric conductivity of the solution, and promote the generation of bubbles, which resulted in enhancing tensile strength and decreasing the production of nanofibers.
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5

Kuehne, D. L., and D. W. Shaw. "Manual and Automated Turbidimetric Methods for the Determination of Polyacrylamides in the Presence of Sulfonates." Society of Petroleum Engineers Journal 25, no. 05 (October 1, 1985): 687–92. http://dx.doi.org/10.2118/11784-pa.

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Abstract Polymers and sulfonates are often part of the multicomponent chemical systems designed to increase oil recovery from depleted reservoirs. The objective of this work was to develop reliable, analytical methods for measuring polyacrylamide concentration in the presence of sulfonates. The need for new or improved methods arose because petroleum sulfonates caused interference with the standard turbidimetric method for determining polyacrylamides. This interference was eliminated by the addition of a butanol-extraction step to remove sulfonates. Based on the new manual procedure, an automated method was developed for use with a Technicon AutoAnalyzer™ to reduce analysis time. The automated method was designed with four modes of operation to cover high and low polymer concentrations with and without sulfonates present in the samples. Polymer concentrations ranging from 10 to a maximum of 1,200 wt ppm [10 to 1200 mg/kg] can be measured. A unique feature of the automated method is the continuous-flow solvent extraction. Depending on the mode, AutoAnalyzer throughput is 20 or 30 samples per hour. The accuracy of the results is 5% with extraction and 1% without extraction. Introduction Polyacrylamide polymers are used for mobility control and profile modification in EOR processes. Rapid and accurate analytical methods are needed for laboratory studies of polymer behavior and for the determination of polymer concentration in field samples. Procedures1,2 based on the turbidimetric reaction of polyacrylamide with bleach (sodium hypochlorite) are commonly used to measure the concentration of polyacrylamide in aqueous samples. In the attempt to apply these procedures to micellar solutions containing polymer, it was found that petroleum sulfonates cause interference because of both their inherent color and unknown reactions with bleach. Two different analytical methods were examined briefly. The starch-triiodide method developed by Scoggins and Miller3 also suffered from petroleum sulfonate interference. An automated method4 involving polymer hydrolysis followed by colorimetric determination of the liberated ammonia worked well with low concentrations of sulfonates. However, any free ammonia or ammonium ions in solution caused a substantial background response. For some of the emulsion-type polyacrylamides, the background response from ammonia in the product was much greater than the polymer response. Efforts to eliminate interferences were focused on the turbidimetric method because it was the easiest to use. Solvent extraction was selected as the best approach to remove petroleum sulfonates and oil from aqueous polymer samples. The requirements for a good solvent were that it remove the interfering components, separate rapidly from the aqueous phase, and have low water solubility. A series of alcohols and other solvents were tested; 1-butanol was found to be the most effective. Therefore, a butanol-extraction step was added to the standard turbidimetric method. Based on this new manual procedure, an automated method was developed for use with an AutoAnalyzer II (Technicon Industrial Systems). Both the manual and automated methods can be run with or without butanol extraction, depending on the type of samples. Manual Method In the turbidimetric method, polyacrylamide polymer reacts with sodium hypochlorite in acetic acid to form an insoluble chloroamide. The resulting turbidity is proportional to polymer concentration and can be measured with a spectrophotometer or turbidimeter. If petroleum sulfonates are present in the samples, they are extracted with 1-butanol that is acidified with HCl. The HCl is necessary to change the sulfonates into sulfonic acids, so that they can be extracted easily. To prevent excess HCl from interfering with the polyacrylamide reaction, the glacial acetic acid is buffered with sodium acetate.
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6

Kassanova, A. Zh, M. T. Yestayeva, and M. O. Turtubayeva. "Arenediazonium sulfonates: synthesis, comparison of structural and physicochemical properties." Bulletin of the Karaganda University. "Chemistry" series 105, no. 1 (March 30, 2022): 25–38. http://dx.doi.org/10.31489/2022ch1/25-38.

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Aromatic diazonium salts are important building blocks in organic synthesis. The present review is concerned with such aromatic diazonium sulfonates as tosylates, dodecylbenzenesulfonates, triflates, camphorsulfonates, silica sulfates. The first part of the review provides information on the synthesis and application of these diazonium salts. It is shown that these diazonium compounds are easily synthesized by diazotization of anilines with sodium nitrite or alkyl nitrites in the presence of corresponding sulfonic acids with high yields. These diazonium salts have found wide application in the synthesis of aromatic azides, halides, triazenes, azo dyes, stilbenes, biaryls, etc. The second part of the article presents information on the comparison of the results of X-ray analysis, infrared spectroscopy and thermal analysis. The structure of diazonium sulfonate salts corresponds to the structure of classical diazonium salts (chlorides, sulfates, tetrafluoroborates). A significant difference between arenediazonium sulfonates and other diazonium salts is their explosion safety and stability in an individual form. Arenediazonium tosylates, triflates and camphorasulfonates are easily soluble both in water and in polar organic solvents. Arenediazonium dodecylbenzenesulfonates are soluble in nonpolar organic media. These features of sulfonate salts are paramount for distinguishing characteristics of the effect of the acid anion on the stability, solubility and reactivity of diazonium salts.
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7

Bilyalov, Alisher A., Mikhail A. Gavrilenko, and Nataliya A. Gavrilenko. "2-NSA, 1,5-NDSA Application and Sodium Naphtionate as Fluorescent Indicators at Oil Field." Advanced Materials Research 1040 (September 2014): 259–62. http://dx.doi.org/10.4028/www.scientific.net/amr.1040.259.

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Set of polyaromatic sulfonates for tracer analysis of oil field as a result of fluorescent spectra study is recommended. Simultaneous determination of fluorescent polyaromatic sulfonates is confirmed by the applicability and reproducibility of the fluorescent method.
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8

Budhram, R. S., and E. J. Eisenbraun. "Synthesis and rigorous purification of sodium alkylbenzene sulfonates." Journal of the American Oil Chemists’ Society 63, no. 10 (October 1986): 1392–94. http://dx.doi.org/10.1007/bf02679609.

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9

Mazal, Ctibor, Věra Rothová, and Jaroslav Jonas. "Sodium salt, sulfonates and carboxylates of (E)- and (Z)-3-(hydroxymethylene)-5-methyldihydro-2(3H)-furanone." Collection of Czechoslovak Chemical Communications 50, no. 2 (1985): 348–56. http://dx.doi.org/10.1135/cccc19850348.

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In the solid state, sodium salt of 3-(hydroxymethylene)-5-methyldihydro-2(3H)-furanone can be prepared in the form of the (Z)-isomer, (E)-isomer or as a mixture of both isomers; in solutions the salt exists exclusively as the (E)-isomer. Reaction of the corresponding isomers of this sodium salt with sulfonyl or acyl chlorides afforded sulfonates or carboxylates derived from (E)- or (Z)-3-(hydroxymethylene)-5-methyldihydro-2(3H)-furanone. Configurations of the obtained isomeric sulfonates and carboxylates were confirmed by their 1H and 13C NMR spectra. Dihedral angles, calculated from the observed coupling constants, were used in the discussion of preferred conformation of the prepared compounds.
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10

Vignola, Nicola, Stefan Dahmen, Dieter Enders, and Stefan Bräse. "Synthesis of alkyl sulfonates from sulfonic acids or sodium sulfonates using solid-phase bound reagents." Tetrahedron Letters 42, no. 44 (October 2001): 7833–36. http://dx.doi.org/10.1016/s0040-4039(01)01683-5.

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Dissertations / Theses on the topic "Sodium sulfonates"

1

Neuendorf, Annette J., and n/a. "High Pressure Synthesis of Conducting Polymers." Griffith University. School of Science, 2004. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20040218.112214.

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An experimental investigation of the high pressure synthesis of water soluble, self doping conducting polymers is presented. 2- And 3-aminobenzenesulfonic acid and the respective sodium sulfonates have been polymerised. Optimal polymerisation conditions have been determined with respect to yield, conductivity and molecular weight. Reaction parameters such as oxidant, pressure, catalysts, reaction time and temperature and the use of additives were investigated. The minimum pressure required for polymerisation was 7 kbar. An increase in pressure had a negligible effect on polymer characteristics. The polymers were generated in aqueous, non-acidic media, to ensure they were selfdoping when characterised. Conductivities of between 10-6 Scm-1 and 10-3 Scm-1 were measured. The sulfonate salts reacted faster than the sulfonic acids and for both a longer reaction time resulted in higher yields and conductivities. These polymers were completely water soluble, of high molecular weight and able to be cast as thin films. The arylamines 5- and 8-aminonaphthalene-2-sulfonic acid and their respective sodium sulfonates were polymerised at elevated pressure. The naphthalene sulfonate salts polymerised at atmospheric pressure, but displayed a higher molecular weight when reacted under pressure. Generally the naphthalene monomers reacted similarly to the benzene monomers, although there were some differences. Conductivity and yield decreased with increased reaction times and the use of 0.1M equivalents of ferrous sulfate had an negligible effect on the polymers. The polynaphthalenes were highly water soluble, self doping and had conductivities in the order 10-5 to 10-3 Scm-1. A measurement of the activation volume for the polymerisation of 2-methoxyaniline and sodium 8-aminonaphthalene-2-sulfonate was performed. These were determined to be -44 ± 3 cm3mol-1 and -62 ± 10 cm3mol-1 respectively. These large negative values are consistent with rate limiting monomer oxidation.
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2

Neuendorf, Annette J. "High Pressure Synthesis of Conducting Polymers." Thesis, Griffith University, 2004. http://hdl.handle.net/10072/366536.

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An experimental investigation of the high pressure synthesis of water soluble, self doping conducting polymers is presented. 2- And 3-aminobenzenesulfonic acid and the respective sodium sulfonates have been polymerised. Optimal polymerisation conditions have been determined with respect to yield, conductivity and molecular weight. Reaction parameters such as oxidant, pressure, catalysts, reaction time and temperature and the use of additives were investigated. The minimum pressure required for polymerisation was 7 kbar. An increase in pressure had a negligible effect on polymer characteristics. The polymers were generated in aqueous, non-acidic media, to ensure they were selfdoping when characterised. Conductivities of between 10-6 Scm-1 and 10-3 Scm-1 were measured. The sulfonate salts reacted faster than the sulfonic acids and for both a longer reaction time resulted in higher yields and conductivities. These polymers were completely water soluble, of high molecular weight and able to be cast as thin films. The arylamines 5- and 8-aminonaphthalene-2-sulfonic acid and their respective sodium sulfonates were polymerised at elevated pressure. The naphthalene sulfonate salts polymerised at atmospheric pressure, but displayed a higher molecular weight when reacted under pressure. Generally the naphthalene monomers reacted similarly to the benzene monomers, although there were some differences. Conductivity and yield decreased with increased reaction times and the use of 0.1M equivalents of ferrous sulfate had an negligible effect on the polymers. The polynaphthalenes were highly water soluble, self doping and had conductivities in the order 10-5 to 10-3 Scm-1. A measurement of the activation volume for the polymerisation of 2-methoxyaniline and sodium 8-aminonaphthalene-2-sulfonate was performed. These were determined to be -44 ± 3 cm3mol-1 and -62 ± 10 cm3mol-1 respectively. These large negative values are consistent with rate limiting monomer oxidation.
Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Science
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3

Blosch, Sarah Elizabeth. "Structure-Property Relationships of Isoprene-Sodium Styrene Sulfonate Elastomeric Ionomers." Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/86362.

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Polymers containing less than 10 mol % of ions (ionomers) have been studied in depth for their potential in producing polymers with tailored properties for specific applications. A small molar percentage of ions can be incorporated into a polymer to drastically enhance the properties of the polymer. An ionomer that has been studied is that of isoprene copolymerized with sodium styrene sulfonate (poly(I-co-NaSS)). Research has been performed relating to the synthesis and chemical characterization of the copolymers. However, an in depth study of the way the physical properties are affected by a change in ion concentration has not been presented. Thus, it is the goal of this thesis to synthesize a series of poly(I-co-NaSS) copolymers with varying levels of sulfonated styrene and characterize their physical properties. The poly(I-co-NaSS) polymers, containing a range of 1.15 to 4.74 mol % NaSS, were polymerized using free radical emulsion polymerization. The copolymer compositions were confirmed using combustion sulfur analysis. Dynamic light scattering indicated that large aggregates were present in solution. These aggregates were large enough that capillary intrinsic viscosities could not be measured. Small angle x-ray scattering (SAXS) and thermal analysis showed little change as the ion concentration was increased, while tensile, stress relaxation and adhesion properties were improved. The absence of changes in the SAXS patterns indicated that there was an absence of a well-defined ionic aggregate, while the mechanical properties showed evidence of electrostatic interactions. This can be at least partially attributed to ionic interactions on a smaller scale (doublets, triplets).
Master of Science
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4

Musa, Haruna. "Synthesis, characterisation and applications of end-functional poly(sodium-4-styrene sulfonate)." Thesis, University of Bristol, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.508080.

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Leroux, Amélie. "Implant ligamentaire bioactif et biodégradable : élaboration, fonctionnalisation et étude des mécanismes." Thesis, Sorbonne Paris Cité, 2019. http://www.theses.fr/2019USPCD054.

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La rupture du ligament croisé antérieur du genou est une affection fréquente qui survient majoritairement chez des sujets jeunes et sportifs. Une fois rompu, en raison de sa localisation intra articulaire et de la pauvreté de sa vascularisation, ce ligament ne cicatrise pas spontanément. Le traitement chirurgical de référence, l’autogreffe, présente de nombreux inconvénients et les travaux de recherche se tournent vers le développement d’implants ligamentaires synthétiques. Dans ce contexte, l’objectif de la thèse était d’étudier la possibilité d’élaborer un nouveau ligament bioactif et biodégradable en polycaprolactone (PCL) greffé de poly(styrène sulfonate de sodium) (pNaSS). Les résultats présentés dans ce manuscrit décrivent toutes les étapes du choix initial de la PCL brute à sa caractérisation, sa fonctionnalisation, ses propriétés mécaniques après élaboration, au mécanisme de dégradation et à son impact biologique in vitro et in vivo. À l’interface des disciplines de l’ingénierie, de la chimie, de la mécanique et de la biologie, nous avons montré que : le greffage de pNaSS accélère la dégradation de la PCL tout en protégeant la surface durant les six premiers mois ; que les propriétés mécaniques de la PCL sont adaptées à une application ligamentaire ; que le greffage de pNaSS favorise in vitro la vitesse de croissance, la distribution, la densité et l’étalement cellulaires, la production de facteur de croissance et le maintien de l’expression génique ; et enfin que le greffage de pNaSS permet in vivo de diminuer l’inflammation articulaire et l’arthrose post-opératoire tout en favorisant la recolonisation tissulaire
The rupture of the anterior cruciate ligament of the knee is a common affection which mainly occurs in young and active population. Because of its joint location and its poor vascularization, this ligament does not heal spontaneously. The “gold-standard”, consisting of using autograft, has many disadvantages and the research focuses on the development of synthetic ligament implants. In this context, this thesis studies and evidences the possibility of a new ligament with bioactive and biodegradable features, made of polycaprolactone (PCL) grafted with poly(sodium styrene sulfonate) (pNaSS). The results presented in this manuscript evaluate the initial choice of raw PCL, its characterization, its functionalization, its mechanical properties after processing, its degradation mechanism and its in vitro and in vivo biological impact. At the interface of engineering, chemistry, mechanics and biology fields, we demonstrated that: the pNaSS grafting accelerates the PCL degradation while protecting the surface during the first six months; the mechanical properties of PCL are adapted to the ligament application; in vitro the pNaSS grafting promotes cell growth, cell distribution, cell density, cell spread, growth factor production, and maintenance of gene expression; and finally that in vivo the pNaSS grafting allows to reduce joint inflammation and postoperative osteoarthritis while promoting tissue recolonization
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Huang, Xiao Hui. "Protective effects of sodium tanshinone II A sulfonate against sunitinib induced cardiotoxicity in H9c2 cell and zebrafish." Thesis, University of Macau, 2014. http://umaclib3.umac.mo/record=b3132193.

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Yeniay, Secil. "Sulfonated Styrene-co-maleic Acid And Its Derivatives As Superplasticizers In Concrete." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/2/12609455/index.pdf.

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In the past three decades, a new group of concrete admixtures, termed &ldquo
superplasticizers&rdquo
, were introduced to the concrete industry. They have gained wide acceptance because of their many advantages. The addition of superplasticizers to concrete improves the workability and strength of concrete. In this study, the effect of the chemical structure of poly (4-styrenesulfonic acid-co-maleic acid) sodium salt (SSAMA), which contains both sulfonic and carboxylic acid groups, which is a new superplasticizer, was analyzed. Two different molecular weights of PEG (polyethylene glycol monomethyl ether) were grafted to this water-soluble copolymer at different weight compositions. The structures of synthesized copolymers were verified by FTIR and NMR analyses. The molecular weight difference of the grafted copolymers with different side chain lengths was determined by dilute solution viscosimetry. The effects of chemical structure of grafted copolymers on the fluidity of cement paste and the mechanical properties of the mortars were investigated. The zeta potential measurements revealed the interactions between the cement particles and polycarboxylate type superplasticizers. The maximum fluidity was achieved for the PEG grafted copolymer with the weight ratio 3:3. The mechanical properties of this copolymer showed the highest flexural and compressive strength compared to other copolymers. The addition of various Li salts to SSAMA affected the ionic medium, therefore, the dispersion performance of cement paste and the mechanical properties of the mortars improved. The mixture of LiCl: SSAMA in 1:1 mol ratio exhibited the maximum fluidity compared to other Li salts and their compositions. This mixture gave the highest flexural strength but the mixture of Li2CO3 in 1:1 composition gave the highest compressive strength in each salt mixtures.
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8

Morand, Karine. "Evaluation de l'activité anticancéreuse et antiangiogénique in vitro de copolymères solubles composés d'acide methacrylique et de styrène sulfonate de sodium." Paris 13, 2007. http://www.theses.fr/2007PA132040.

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Le Laboratoire de Biomatériaux et Polymères de Spécialité a développé des copolymères solubles composés d'acide métacrylique et de styrène sulfonate de sodium. Ces copolymères ont une activité antitumorale et antiangiogénique in vitro. Ils inhibent l'adhérence cellulaire à la matrice extracellulaire médiée par les intégrines. Les capacités inhibitrices des copolymères ont été montrées sur une lignée cancéreuse mammaire et sur des cellules endothéliales primaires. Le manque d'adhérence empêche le recrutement du cytosquelette d'actine et provoque l'inhibition de la prolifération cellulaire dès les premiers jours d'incubation. La migration et la différentiation des cellules endothéliales sont également ce qui entraîne une diminution de la densité de formations pseudovasculaires. L'efficacité des copolymères est fonction du type cellulaire considéré et de leur composition en MA et NaSS. Le copolymère composé de 30% de MA et à 70% de NaSS semble être le plus actif. Par ailleurs, les copolymères MA/NaSS induisent l'anoïkis de manière importante chez les cellules endothéliales sans montrer de cytotoxicité. Les copolymères MA/NaSS représentent surtout une stratégie intéressante dans la lutte contre l'angiogénèse pathologique. Ils continuent à faire l'objet d'étude pour élucider de façon complète leur mécanisme d'action et, à plus long terme, évaluer leur efficacité in vivo sur des modèles animaux
The Laboratoire de Biomatériaux et Polymères de Spécialité has developped soluble copolymers composed of methacrylic acid and sodium styrene sulfonate. These copolymers have antiangiogenic and antitumor activities in vitro. They inhibit cell adhesion to the extracellular matrix mediated by integrins. We have shown this activity on a breast cancer cell line and on primary cultured endothelial cells. The lack of adhesion prevents the recruitment of actin cytoskeleton and induces the inhibition of cell proliferation. Cell migration ans differentiation are also inhibited and the density of microtubules decreased. The efficacy of copolymers depends o their composition and on cell type. The copolymer composed of 30% methacrylic acid and of 70% sodium styrene sulfonate seems to be the most efficient. The copolymers induce anoïkis in endothelial cells without any toxicity. These new copolymers are an interesting strategy in antiangiogenic therapies. We continue to study them to better know their mechanism of action and to evaluate their in vivo efficiency
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Dejeu, Jérôme. "Films de deux polymères auto-assemblés : chlorhydrate de polyallylamine (PAH) et polystyrène sulfonate de sodium (PSS) : mécanisme de croissance et stabilité." Besançon, 2007. http://www.theses.fr/2007BESA2005.

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Le mécanisme et la stabilité d’auto-assemblage de deux polyélectrolytes (PAH et PSS) en vue de la nano-encapsulation ont été essentiellement étudiés par réflectométrie laser à angle fixe. Cette technique se révèle très utile pour quantifier la masse de polymère adsorbé en fonction du temps sur un substrat. Dans un premier temps, plusieurs méthodes, de conversion du signal réflectométrique en quantité adsorbée, ont été présentées. Ainsi, ans le cas de film monocouche, une nouvelle approche de conversion des signaux est nécessaire afin de prendre en compte un fort changement d’indice de la solution dû à des concentrations de polymères importantes. Dans le cas de films auto-assemblés, le modèle consiste à considérer une couche adsorbée d’épaisseur et d’indice variant après chaque injection. La deuxième partie, a permis de proposer un mécanisme d’auto-assemblage de ces deux polyélectrolytes. Cette étude réalisée sur substrat plan, à l’aide de la réflectométrie et de l’AFM, met en évidence des différences de comportement de chaque polyélectrolyte. On a aussi eu recours à une étude sur colloïde pour montrer le rôle important des ions, le changement d’ionisation des polymères et le nombre de couches nécessaire à une couverture complète du substrat. Enfin, cette partie s’est terminée par l’étude de films très épais, constitués d’un nombre de couches allant jusqu’à 320, et nécessitant l’utilisation de techniques nouvelles dans ce domaine, le faisceau d’ions focalisé et la spectroscopie à décharge luminescente. La dernière partie a traité de la stabilité du film auto-assemblé lors de son rinçage dans des conditions différentes ou non de celles de la construction. Le dernier polyélectrolyte adsorbé et le nombre de couches déposées influent le comportement des films. Ces résultats permettent de prévoir les conditions de conservation de ces films ainsi que celles de déconstruction partielle ou totale en vue du relargage du principe actif contenu dans les capsules
The growth mechanism and the stability of polyelectolyte films elaborated by multi-steps self association were investigated using principally fixed angle laser reflectometry. The first part of the investigation addressed the conversion of the reflectometric output into the deposited weight of polymer. In the case of a monolayer we have established the range of validity of a linear relationship between the deposited weight and the reflectometric output. In the case of a multilayer film we have used and explored a new approach developed in the laboratory allowing the determination of the stepwise change of the refractive index and the film thickness, leading eventually to the deposited weight. The second part of the work is dedicated to the experimental elaboration of films with the polyelectrolytes poly(allylamine,HCl) and poly(styrene sulfonate). The influence of the principal operational parameters was screened (pH, ionic strength, type of electrolytes, molecular weight of polymers, washing between deposition steps, etc). The charge balance and the incorporation of small ions were determined step by step. The elaboration of films on the flat silica substrate in the reflectometric cell was compared with that on colloidal silica. Complementary characterization of the polymer films were made with AFM and Focused ion beam imaging (FIB-SIM), which allowed the determination of the films morphology and roughness. Very thick films were constructed. A growth mechanism was proposed to explain the transition between an early stage (first steps), influenced by the property of the surface and later steps where the growth only depends on the interaction between the two polymers. Finally the stability of 1 to 5 bilayers films was examined upon change of the pH of the solution
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Machado, Douglas Silva. "Estudo do comportamento de sistemas hidrotrópicos." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/75/75134/tde-25072012-085958/.

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Neste trabalho estudou-se o comportamento de soluções dos hidrótropos toluenossulfonato de sódio (TSS) e n-butilbenzeno sulfonato de sódio (NBBSNa) quanto a suas características de agregação/associação por Ressonância Magnética Nuclear 1H (RMN 1H), espalhamento de raios-X à baixo ângulo (SAXS), espalhamento de luz estático (SLS) e espalhamento de luz a médios ângulos (WAXS). Medidas realizadas com outros hidrótropos tais como estirenossulfonato de sódio (ESS), salicilato de sódio (SalS) e benzoato de sódio (BS) foram realizadas para comparação dos resultados. O NBBSNa foi sintetizado, purificado e caracterizado. Os experimentos de RMN revelam mudanças no deslocamento químico com a concentração, indicando mudança de ambiente a que as moléculas estão submetidas. Pela técnica de SLS pode-se avaliar o segundo coeficiente do virial das soluções de TSS com e sem a adição de um soluto. Pelas análises de SAXS determinou-se o tamanho do agregado de NBBSNa utilizando ajustes pelo programa SASfit, sendo o resultado comparado com um surfactante clássico dodecilbenzenossulfonato de sódio (DBSNa). O NBBSNa é um sistema de três densidades eletrônicas e esférico. Os demais hidrótropos estudados apresentam comportamento de líquido, sendo observado a correlação das moléculas a curta distância nos experimentos de WAXS.
In this work the behavior of solutions of the hydrotropes sodium toluene sulfonate (TSS) and sodium n-butylbenzene sulfonate (NBBSNa) was studied, concerning the aggregation/association characteristics of this molecules by the use of Nuclear Magnetic Resonance (NMR 1H), small angle x ray scattering (SAXS), static light scattering (SLS) and wide angle x ray scattering (WAXS). Measurements with other hydrotropic molecules like sodium styrene sulfonate (ESS), sodium salicylate (SalS), sodium benzoate (BS) were realized in order to discuss the results. The NBBSNa molecule was synthesized, purified and characterized. The experiments of NMR revealed changes in the chemical shift with the concentration, indicating the changes of the surround environment in what molecules are embedded. For the technique of SLS, the second virial coefficient of the solutions of TSS could be evaluated with and without the addition of a solute. By the SAXS data the size of the aggregate of NBBSNa was determined using the SASfit software. The result was compared with a classic surfactant sodium dodecylbenzene sulfonate (DBSNa). NBBSNa is a spherical system of three electronic densities. All the other hydrotropes studied shows a liquid scattering behavior. By WAXS experiments a correlation of the molecules at short distance was observed.
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Books on the topic "Sodium sulfonates"

1

Belanger, Denis R. Effect of sodium polystyrene sulfonate on lithium bioavailability. [Ottawa: Ottawa General Hospital, 1989.

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Chishakwe, Nyasha. Access to genetic resources and the sharing of benefits arising from their use (ABS): Trainers' manual. [Harare]: Southern Africa Biodiversity Policy Initiative, 2010.

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Chishakwe, Nyasha. Access to genetic resources and the sharing of benefits arising from their use (ABS): Trainers' manual. [Harare]: Southern Africa Biodiversity Policy Initiative, 2010.

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Drewa, Gerard. Badania nad wpływem olejów napędowych i detergentu ABS na garnelę Crangon Crangon L. Szczecin: Wydawn. Akademii Rolniczej w Szczecinie, 1985.

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Luh, Song-ping. The cloud point composition and flory-huggins interaction parameters of polyethylene glycol and sodium lignin sulfonate in water-ethanol mixtures. 1987.

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Book chapters on the topic "Sodium sulfonates"

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Bährle-Rapp, Marina. "Sodium Caprylyl Sulfonate." In Springer Lexikon Kosmetik und Körperpflege, 507. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_9456.

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Bährle-Rapp, Marina. "Sodium Cocomonoglyceride Sulfonate." In Springer Lexikon Kosmetik und Körperpflege, 509. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_9492.

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Bährle-Rapp, Marina. "Sodium Guiazulene Sulfonate." In Springer Lexikon Kosmetik und Körperpflege, 511. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_9553.

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Bährle-Rapp, Marina. "Sodium Hydroxymethane Sulfonate." In Springer Lexikon Kosmetik und Körperpflege, 511. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_9564.

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Bährle-Rapp, Marina. "Sodium Methylnaphthalene Sulfonate." In Springer Lexikon Kosmetik und Körperpflege, 514. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_9625.

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Bährle-Rapp, Marina. "Sodium Pantetheine Sulfonate." In Springer Lexikon Kosmetik und Körperpflege, 515. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_9666.

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Bährle-Rapp, Marina. "Sodium Phenylbenzimidazole Sulfonate." In Springer Lexikon Kosmetik und Körperpflege, 516. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_9681.

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Bährle-Rapp, Marina. "Sodium Polystyrene Sulfonate." In Springer Lexikon Kosmetik und Körperpflege, 516. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_9693.

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Bährle-Rapp, Marina. "Sodium Xylene Sulfonate." In Springer Lexikon Kosmetik und Körperpflege, 519. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_9780.

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Bährle-Rapp, Marina. "Sodium Cocoglyceryl Ether Sulfonate." In Springer Lexikon Kosmetik und Körperpflege, 509. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_9489.

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Conference papers on the topic "Sodium sulfonates"

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Aydin, Hakki, Nirup Nagabandi, Diyar Jamal, and Cenk Temizel. "A Comprehensive Review of Tracer Test Applications in Geothermal Reservoirs." In SPE Western Regional Meeting. SPE, 2022. http://dx.doi.org/10.2118/209325-ms.

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Abstract Tracer test is a strong tool that is used to understand the connectivity between injection and production wells in geothermal reservoirs. It is essential to design and implement a tracer test for particular reservoir properties. Inappropriate tracer tests, might cuase wrong reservoir characterization interpretations. This study incorporates in the design, the implementation, and the interpretation of tracer tests in geothermal reservoirs. This study is populated with numerous field applications to ensure better understanding of the subject. The study initially present the types of tracers used in geothermal reservoirs. The appropriate tracer type is selected based on various parameters such as reservoir conditions, economics, type of measurement devices available, minimum detection concentration, environmentally friendly, and stability at reservoir conditions. Once the type of tracer is selected, the amount of tracer to be injected and the tracer sampling frequency are determined based on the distance between wells, mean traveling time, and the desired peak concentration. The tracer is injected as slug/continuous type to the selected injection wells and sampling from production wells. The measured tracer concentrations are then modeled with analytical methods such as the multi-fractures, single fracture, dual-porosity, and homogenous models. Naphthalene sulfonates, is frequently used in high-temperature geothermal reservoirs because of is high resistance and half-life in harsh conditions. Salts such as sodium chloride and potassium chloride are also conservative in harsh conditions; however, a large amount of salt is required to be injected to create an additional concentration in the reservoir brine, which already includes a certain salt concentration. Fluorescein is mostly applicable in low enthalpy reservoirs because of its weakness at high temperatures. Analytical models are matched with field data by using the nonlinear least square method. The most representative reservoir model is determined by evaluating the sum of the squared differences between tracer concentrations of the model and field data. Geothermal reservoirs are generally best matched with multi-fractures and dual-porosity models because of the secondary permeability and porosity of tectonic activities and mineral dissolution mechanisms. This study, provides a detailed information about tracer test design, implementation, and interpretation. It serves as a guidance by including numerous field cases and the latest research about tracers in geothermal.
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Awan, Faisal Ur Rahman, Alireza Keshavarz, Hamed Akhondzadeh, Ataollah Nosrati, Sarmad Al-Anssari, and Stefan Iglauer. "Optimizing the Dispersion of Coal Fines Using Sodium Dodecyl Benzene Sulfonate." In SPE/AAPG/SEG Asia Pacific Unconventional Resources Technology Conference. Tulsa, OK, USA: Unconventional Resources Technology Conference, 2019. http://dx.doi.org/10.15530/ap-urtec-2019-198250.

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Semenova, S. N. "Functionalization of nickel-carbon nanocomposite with sodium polymethyl naphthalene sulfonate (C-3)." In 2022 33th All-Russian Youth Exhibition of Innovations. Publishing House of Kalashnikov ISTU, 2022. http://dx.doi.org/10.22213/ie022142.

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Effective use of metal-carbon nanocomposite (NC) dispersions in composite materials is a complex task. The results of experimental work on the functionalization of nickel-carbon nanocomposites (Ni/C NC) with sodium polymethyl naphthalene sulfonate (plasticizer C-3) for the modification of the cement matrix are presented. The article presents a comparative analysis of dispersions with different duration of ultrasonic treatment at different temperature conditions. It is revealed that solubilization and stability of the system is achieved at a time of ultrasonic treatment of 15 minutes and a heating temperature of 25 ° C. The infrared spectral analysis of compounds formed under the selected mode of obtaining dispersion was carried out. The obtained spectra indicate the substitution of sodium (Na) and the addition of the carbon structure of Ni/C NC to sulfur oxide (VI) SO 3- in a molecule of sodium polymethylsulfonate.
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Zhou, W., M. Dong, Y. Guo, and H. Xiao. "Effect of Sodium Dodecyl Benzene Sulfonate on Water-Soluble Hydrophobically Associating Polymer Solutions." In Canadian International Petroleum Conference. Petroleum Society of Canada, 2003. http://dx.doi.org/10.2118/2003-207.

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Adeniyi, Adekunle Tirimisiyu, and Ijoma Onyemaechi. "Non-Edible Oil Based Surfactant For Enhanced Oil Recovery." In SPE Nigeria Annual International Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/207155-ms.

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Abstract After the primary and secondary oil recoveries, a substantial amount of oil is left in the reservoir which can be recovered by tertiary methods like the Alkaline-Surfactant Flood. Reasons for having some unproduced hydrocarbon in the reservoir include and not limited to the following; forces of attraction fluid contacts, low permeability, high viscous fluid, poor swept efficiency, etc. Although, it is possible to commence waterflooding together chemical injection at the start of production. Reservoir simulation with commercial simulator, could guide in selecting the most appropriate period to commence chemical flooding. In this study, the performance of a new synthetic surfactant produced from Jatropha Curcas seed was compared with that of a selected commercial surfactant in the presence of an alkaline and this shows that the non-edible Jatropha oil is a natural, inexpensive and a renewable source of energy for the production of anionic surfactants and a good substitute for commercial surfactants like Sodium Dodecyl Sulphate (SDS). The Methyl Ester Sulfonate (MES) surfactant showed no precipitation or cloudiness during stability test and was able to reduce the Interfacial Tension (IFT) to 0.018 mN/m and 0.020 mN/m in the presence of sodium carbonate and sodium hydroxide respectively as alkaline at low surfactant concentration. The optimum alkaline surfactant formulation in terms of oil recovery performance obtained from the core flooding experiment corresponds to a concentration of sodium carbonate (0.5wt%), sodium hydroxide (0.5wt%) mixed in distilled water and Methyl Ester Sulfonate (MES) surfactant (1wt%). The injection of 0.5 percentage volume of alkaline surfactant slug produced an incremental oil recovery of 26.7% and 29% respectively. With these incremental oil recoveries, increasing demand for hydrocarbons product could be met, and returns on investment portfolio will be improved.
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Isa, K. B. Md, L. Othman, D. Hambali, Z. Zainuddin, and Z. Osman. "Na-ion conducting gel polymer electrolytes based on polyvinylidenefluoride-co-hexafluoropropylene with sodium trifluoromethane-sulfonate." In GREEN DESIGN AND MANUFACTURE: ADVANCED AND EMERGING APPLICATIONS: Proceedings of the 4th International Conference on Green Design and Manufacture 2018. Author(s), 2018. http://dx.doi.org/10.1063/1.5066869.

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Reynoso, G., P. Marti´nez, and R. Reyes. "Interfacial Energy and Micelle Conditions of Ternary Mixtures for Improved Heat Transfer." In ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems. ASMEDC, 2005. http://dx.doi.org/10.1115/ht2005-72571.

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The search for suitable mixtures as boiling fluids leads to the development of ternary liquid mixtures that could handle even higher heat fluxes than binary mixtures through the formation of stable bubble-micelles departing from the heater’s surface. The amount of experimental work for testing the combinations is reduced using the interfacial tension prediction capabilities of simulation software, although it is not possible to predict singularities in the interfacial tension behavior of the mixtures. The ethanol aqueous mixture shows a singularity in its interfacial tension value at 16% ethanol by weight. In this work was combined with glycols for enhancing boiling heat transfer by decreasing the mixture interfacial tension. Also, the effect of the surfactants Dodecyl Benzene Sodium Sulfonate (DBSS) and Sodium Lauryl Sulfonate (SLS) in the mixture interfacial tension was studied. The measurements of sessile drop contact angles of mixtures with added surfactant allowed finding the singularities in the surface tension values that are related to critical micelle concentrations and the increment in boiling heat transfer. The propilenglycol-ethanol-water mixture produced the lowest values of contact angles, while for the etilenglycol-ethanol-water mixtures no such reduction was obtained with the same amount of the glycol. The use of DBSS and SLS at their critical micelle concentration decreased further the interfacial tension of the propilenglycol ternary mixture to generate a mixture that could improve the convective heat transfer coefficient.
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Iswanto, Ponco, Eva Vaulina Yulistia Delsy, Ely Setiawan, and Fani Octaviani. "Basis set validation of sodium dodecyl benzene sulfonate based on infrared spectrum using Ab initio method." In VIII INTERNATIONAL ANNUAL CONFERENCE “INDUSTRIAL TECHNOLOGIES AND ENGINEERING” (ICITE 2021). AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0104470.

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Hudson, C. Monica. "Intercalation of Layered Double Hydroxide Polymer Nanocomposites." In ASME 2002 Engineering Technology Conference on Energy. ASMEDC, 2002. http://dx.doi.org/10.1115/etce2002/trib-29096.

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Magnesium-aluminum (Mg-Al) based layered double hydroxide (LDH) polymer nanocomposites were developed through the implementation of a rehydration technique. Organic anionic surfactant sodium dodecyl sulfate (SDS) and an anionic polymer, poly(styrene sulfonate) (PSS) were used for intercalation in the cationic intergallery spacing of LDH. This rehydration technique was performed by calcination of the LDH precursor for removal of carbonate anion followed by rehydration of organic anionic phase in a nitrogen rich atmosphere. The resulting nanocomposites were characterized by Fourier Transform Infrared Spectroscopy (FTIR) and powder x-ray diffraction (XRD).
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Yulizar, Y., T. Utari, D. O. B. Apriandanu, and D. Yolani. "Modification of Al-pillared bentonite with poly diallyl dimethyl ammonium as adsorbent of sodium dodecyl benzene-sulfonate." In PROCEEDINGS OF THE 5TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES (ISCPMS2019). AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0007926.

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Reports on the topic "Sodium sulfonates"

1

Wang, Zhen, Ziyang Zhou, Lijuan Zhang, Xujie Li, Miaoxiu Li, Yankun Pan, Tiyong Jiao, et al. Effect of Sodium Tanshinone IIA Sulfonate Injection as Adjuvant Therapy on Hemorheology in Patients with Coronary Heart Disease: A Systematic Review and Meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, August 2022. http://dx.doi.org/10.37766/inplasy2022.8.0031.

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Wang, Zhen, Ziyang Zhou, Lijuan Zhang, Xujie Li, Miaoxiu Li, Yankun Pan, Tiyong Jiao, et al. Effect of Sodium Tanshinone IIA Sulfonate Injection on Vascular endothelial function and inflammatory factors in Patients With Coronary Heart Disease: A Systematic Review and Meta-Analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, July 2022. http://dx.doi.org/10.37766/inplasy2022.7.0037.

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