Relevant bibliographies by topics / Condensation products

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Condensation products'

Author: Grafiati
Published: 4 June 2021
Last updated: 3 February 2022

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Journal articles on the topic "Condensation products"

1

Sawada, Tadanobu, Hiroyuki Ishii, Toyotoshi Ueda, Satoshi Iwashima, Zeper Abliz, Minoru Takekawa, and Junji Aoki. "GLYCEROL CONDENSATION PRODUCTS OF AMINOANTHRAQUINONES." Polycyclic Aromatic Compounds 26, no. 2 (May 2006): 121–44. http://dx.doi.org/10.1080/10406630600642410.

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Jensen, Hans Peter. "Condensation products of formylcamphor with diamines." Tetrahedron 41, no. 14 (January 1985): 2867–70. http://dx.doi.org/10.1016/s0040-4020(01)96606-2.

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Colligon, John S. "Energetic condensation: Processes, properties, and products." Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films 13, no. 3 (May 1995): 1649–57. http://dx.doi.org/10.1116/1.579746.

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Cherepanov, I. S. "Thermal and IR-Fourier transform spectroscopic study of water-soluble carbohydrate-arylamine condensation products in neutral media." Proceedings of the Voronezh State University of Engineering Technologies 81, no. 3 (December 20, 2019): 213–16. http://dx.doi.org/10.20914/2310-1202-2019-3-213-216.

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Production of synthetic analogues of natural compounds, including high-molecular ones, as well as study of processes of their structure formation, is a pressing task of organic substances technology. To a large extent, this applies to synthetic humic substances, important products characterized by plant growth effect, chelating and other important properties. Simple carbohydrates and aromatic amines as oxygen and nitrogen-containing constituents during condensation in ethanol media produce water-fractionated products, the soluble fractions of which are studied herein by thermal degradation in combination with IR-Fourier transform spectroscopy. Spectral band profile is confirmed mainly by aliphatic structure with high degree of functionalization by carboxyl, hydroxyl and amine groups. As the isolated water-soluble solid products are thermally decomposed in the range of 100-180 °С temperatures in an inert atmosphere, the intensity of bands at 1030 and 1090 cm-1 decreases, and the intensity of the first band drops to almost zero at 180 °С. This experimental fact indicates the progress of thermal dehydration processes, indicating the presence of hydroxyl functions in the structure of the products. The latter are both OH-groups of carbohydrate residue and groups, formed during condensation processes. Additionally, the intensity of the absorption band in the region of 1600 cm-1 corresponding to the fluctuations of double bonds resulting from dehydration is increased. It can be assumed that unlike products of insoluble fractions, as well as products of acid-catalyzed condensations, water-soluble products are formed in neutral ethanol media, the main processes of formation of which are processes of direct retro-aldol cleavage of N-glycosylamines with subsequent condensation of decomposition products. Such a set of processes is an alternative to the experimental difficulty of Amadori rearrangement and lead to formation of products structure differ from one for acid catalyzed condensation products.
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Fairhurst, Magnus, Muhammad Zeeshan, Bengt Haug, and Annette Bayer. "Aldol Condensations on a 3-Alkylidene-2,5-diketopiperazine: Synthesis of Two Marine Natural Products." Synlett 29, no. 10 (January 30, 2018): 1303–6. http://dx.doi.org/10.1055/s-0036-1591755.

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The synthesis of two marine natural products containing a 3-alkylidene-6-arylidene-2,5-diketopiperazine scaffold by employing two consecutive aldol condensations starting with 1,4-diacetyl-2,5-diketopiperazine is reported. The target compounds contain a phenol or an imidazole group as aryl substituents, respectively, and suitable conditions for the aldol condensation of 1-acyl-3-alkylidene-2,5-diketopiperazine with the required functionalised aromatic aldehydes were developed. Provided the optimal base was used, introduction of the phenol group did not require use of a protecting group. Boc-protection was beneficial for introduction of the imidazole group, and conditions for carrying out the aldol condensation and Boc-deprotection in one step were identified. The stereochemistry of the target compounds was confirmed by NMR analysis.
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Witzig, Reto M., and Christof Sparr. "Synthesis of Enantioenriched Tetra-ortho-3,3′-substituted Biaryls by Small-Molecule-Catalyzed Noncanonical Polyketide Cyclizations." Synlett 31, no. 01 (October 22, 2019): 13–20. http://dx.doi.org/10.1055/s-0039-1690215.

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The arene-forming aldol condensation is a fundamental reaction in the biosynthesis of aromatic polyketides. Precisely controlled by the polyketide synthases, the highly reactive poly-β-carbonyl substrates are diverged into numerous aromatic natural products by selective cyclization reactions; a fascinating biosynthetic strategy that sparked our interest to investigate atroposelective aldol condensations. In this Account, we contextualize and highlight the ability of small-molecule catalysts to selectively convert noncanonical hexacarbonyl substrates in a double arene-forming aldol condensation resulting in the atroposelective synthesis of tetra-ortho-3,3′-substituted biaryls. The hexacarbonyl substrates were obtained by a fourfold ozonolysis enabling a late-stage introduction of all carbonyl functions in one step. Secondary amine catalysts capable of forming an extended hydrogen-bonding network triggered the noncanonical polyketide cyclization in order to form valuable biaryls in high yields and with stereocontrol of up to 98:2 er.1 Biosynthesis of Aromatic Polyketides2 Rotationally Restricted Aromatic Polyketides3 3,3′-Substituted Binaphthalenes in Catalysis4 Stereoselective Synthesis of Atropisomers5 Synthesis of Enantioenriched Tetra-ortho-3,3′-Substituted Biaryls by the Atroposelective Arene-Forming Aldol Condensation6 Conclusion
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Nakamura, Y., A. Uchida, S. Ohshima, I. Oonishi, and S. Fujisawa. "Photooxygenation of the Condensation Products of Naphthanthrone." Polycyclic Aromatic Compounds 14, no. 1-4 (December 1999): 265–73. http://dx.doi.org/10.1080/10406639908019132.

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GUPTA, G., and S. BANERJEE. "ChemInform Abstract: Cyclization of Stobbe Condensation Products." ChemInform 23, no. 25 (August 21, 2010): no. http://dx.doi.org/10.1002/chin.199225136.

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Metlushka, K. E., D. N. Sadkova, K. A. Nikitina, Z. R. Yamaleeva, K. A. Ivshin, O. N. Kataeva, and V. A. Alfonsov. "Condensation products of Betti base and pyridinecarboxaldehydes." Russian Chemical Bulletin 67, no. 12 (December 2018): 2271–74. http://dx.doi.org/10.1007/s11172-018-2369-z.

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Buvaylo, Elena A., Vladimir N. Kokozay, Nataliia Yu Strutynska, Olga Yu Vassilyeva, and Brian W. Skelton. "Formaldehyde–aminoguanidine condensation and aminoguanidine self-condensation products: syntheses, crystal structures and characterization." Acta Crystallographica Section C Structural Chemistry 74, no. 2 (January 12, 2018): 152–58. http://dx.doi.org/10.1107/s2053229617018514.

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Guanidine is the functional group on the side chain of arginine, one of the fundamental building blocks of life. In recent years, a number of compounds based on the aminoguanidine (AG) moiety have been described as presenting high anticancer activities. The product of condensation between two molecules of AG and one molecule of formaldehyde was isolated in the protonated form as the dinitrate salt (systematic name: 2,8-diamino-1,3,4,6,7,9-hexaazanona-1,8-diene-1,9-diium dinitrate), C3H14N8 2+·2NO3 −, (I). The cation lacks crystallographically imposed symmetry and comprises two terminal planar guanidinium groups, which share an N—C—N unit. Each cation in (I) builds 14 N—H...O hydrogen bonds and is separated from adjacent cations by seven nitrate anions. The AG self-condensation reaction in the presence of copper(II) chloride and chloride anions led to the formation of the organic–inorganic hybrid 1,2-bis(diaminomethylidene)hydrazine-1,2-diium tetrachloridocuprate(II), (C2H10N6)[CuCl4], (II). Its asymmetric unit is composed of half a diprotonated 1,2-bis(diaminomethylidene)hydrazine-1,2-diium dication and half a tetrachloridocuprate(II) dianion, with the CuII atom situated on a twofold rotation axis. The planar guanidinium fragments in (II) have their planes twisted by approximately 77.64 (5)° with respect to each other. The tetrahedral [CuCl4]2− anion is severely distorted and its pronounced `planarity' must originate from its involvement in multiple N—H...Cl hydrogen bonds. It was reported that [CuCl4]2− anions, with a trans-Cl—Cu—Cl angle (Θ) of ∼140°, are yellow–green at room temperature, with the colour shifting to a deeper green as Θ increases and toward orange as Θ decreases. Brown salt (II), with a Θ value of 142.059 (8)°, does not fit the trend, which emphasizes the need to take other structural factors into consideration. In the crystal of salt (II), layers of cations and anions alternate along the b axis, with the minimum Cu...Cu distance being 7.5408 (3) Å inside a layer. The structures of salts (I) and (II) were substantiated via spectroscopic data. The endothermic reaction involved in the thermal decomposition of (I) requires additional oxygen. The title salts may be useful for the screening of new substances with biological activity.
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Dissertations / Theses on the topic "Condensation products"

1

Lacy, Stephen Michael. "Redox-active cyclophane host molecules for the inclusion of cationic and neutral guest species." Thesis, University of Oxford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333410.

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Hamid, Javid. "Mechanistic studies of the synthesis and decomposition of some amine-carbonyl condensation products." Thesis, Durham University, 1992. http://etheses.dur.ac.uk/6083/.

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Condensation of benzylamine and glyoxal in a 2:1 molar ratio in acetonitrile containing a catalytic amount of acid is found to give the cage compound 2,4,6,8,10,12-hexabenzyl-2,4,6,8,10,12-hexaazatetracyclo [5.5.0.0(^5,9).0(^3,11)] dodecane (hexabenzylhexaazaisowurtzitane). The yield of the isowurtzitane cage compound was optimised by varying the temperature and the acid catalyst. Eight phenyl ring substituted benzylamines were also found to give the isowurtzitane cage structure. Yields were found to be lower for benzylamines carrying electron-withdrawing ring substituents. A tetra-acetylated isowurtzitane derivative was also prepared and the NMR spectra were examined showing it to consist of a mixture of isomers due to restricted rotation about the N-acetyl bonds. (^1)H and (^13)C spectral assignments were aided by the use of deuteriated isowurtzitane cage compounds in which all the benzyl methylene hydrogens had been replaced by deuterium. N,N'-dibenzyl-l,2-ethane diimine and l,2-bis(benzylamino)- 1,2-ethanediol which are thought to be intermediates in the formation of the cage compounds were prepared and the mechanism of formation of the hexabenzylhexa- azaisowurtzitanes is discussed. The reaction mixture left after the precipitation of the cage compounds was examined by HPLC and NMR to ascertain if any other products could be isolated. Results indicated a complex mixture from which the diimine, protonated benzylamine and the diol could be identified. In acidic solution the cages are found to exist in either the monoprotonated or diprotonated forms. The monoprotonated species is found to be fairly stable whereas the diprotonated species is found to decompose fairly rapidly. (^1)H and (^13)C NMR show that the proton is held strongly in a position between the two nitrogen atoms in the two five-membered rings on one side of the molecule. The diprotonated species has two protons, one incorporated on each side of the molecule. Kinetic results show that decomposition of the isowurtzitane cages in acidic media occurs via an acid or water catalysed pathway. An approximate value of the K(_a) for hexabenzylhexaazaisowurtzitane of ≥4 has been calculated. The decomposition of some 3,7 di-substituted bicyclononanes in acidic media has been investigated. Kinetic results indicated two decomposition pathways involving reaction of the monoprotonated forms of DPTDNPT and DAPT with either water or acid. In the case of DNPT there was also evidence for reaction via a diprotonated species. The reaction of 2-aminobenzylamine with glyoxal is found not to give the expected cage structure but a novel cyclisation product 2,2' -bis( 1,2,3,4-tetrahydro- quinoxaline). Formation is thought to involve intramolecular cyclisation of the diimine intermediate. Reaction of 4-aminobenzylamine with glyoxal gave an unidentified solid which does not possess an isowurtzitane cage structure.
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Shear, Michael A. "Ultrasonic measurement of thin condensing fluid films." Link to electronic thesis, 2002. http://www.wpi.edu/Pubs/ETD/Available/etd-0910102-141712.

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Hinkson, Dezra C. "A study of the chemical composition and corrosivity of the condensate for top of the line CO₂ corrosion." Ohio : Ohio University, 2007. http://www.ohiolink.edu/etd/view.cgi?ohiou1157700503.

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Kasprzyk, Milena, and milena kasprzyk@freehills com. "Synthetic Studies Towards the Tridachione Family of Marine Natural Products." Flinders University. Chemistry, Physics and Earth Sciences, 2008. http://catalogue.flinders.edu.au./local/adt/public/adt-SFU20081107.085933.

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Since the middle of the 20th century, significant interest has evolved from the scientific community towards the polypropionate family of marine natural products. A number of these compounds have been shown to possess significant biological activity, and this property, as well as their structural complexity, has driven numerous efforts towards their synthesis. The first chapter provides an introduction into the world of polypropionates, with a discussion on synthetic studies into a number of members of the tridachiapyrone family. Fundamental synthetic concepts utilised in this thesis towards the preparation of polyketides are also described, with a focus on their application towards the synthesis of 9,10-deoxytridachione, anti tridachiahydropyrone and syn tridachiahydropyrone. Chapter 2 describes the work undertaken towards the total synthesis of 9,10-deoxytridachione. The novel tandem conjugate addition-Dieckmann condensation of complex enones developed previously in the Perkins group was used to generate anti methylated cyclohexenones as key synthetic intermediates. The conversion of the cyclohexenones into the corresponding cyclohexadienes via allylic alcohols was attempted, utilising a Grignard-mediated reaction to achieve the selective 1,2-reduction. Studies into the Grignard-mediated reduction were also undertaken on seven additional cyclohexenones, in order to investigate the utility and scope of the reaction. The extension of the methodology previously developed for the synthesis of cyclohexenones is the subject of Chapter 3. This section describes investigations into the synthesis of stereochemically-diverse cyclohexenones from complex enones. The conjugate addition-Dieckmann condensation strategy was extended successfully towards the synthesis of a syn methylated cyclohexenone, which allowed the synthesis of the proposed true structure of tridachiahydropyrone to be pursued. The methodology developed in Chapter 3 was utilised in Chapter 4 to synthesise a model system of syn tridachiahydropyrone. A comparative analysis of the NMR data of the syn model, an anti model and anti tridachiahydropyrone with the natural product indicated that the true structure of tridachiahydropyrone may indeed have syn stereochemistry. The synthesis of syn tridachiahydropyrone was attempted, and to this end a suitable cyclohexanone was successfully synthesised. However, the subsequent methylation-elimination cascade failed to furnish the desired syn methylated cyclohexenone, producing only an anti methylated cyclohexanone. The stereochemistry of the methylation was deduced using high and low variable temperature NMR coupled with selective irradiation NOESY.
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Nin, Brauer Martin Claudio [Verfasser], Ludger [Akademischer Betreuer] Wessjohann, and Thomas J. J. [Akademischer Betreuer] Müller. "New post condensation reactions of Biginelli three and Ugi four component products / Martin Claudio Nin Brauer. Betreuer: Ludger Wessjohann ; Thomas J. J. Müller." Halle, Saale : Universitäts- und Landesbibliothek Sachsen-Anhalt, 2015. http://d-nb.info/1079217614/34.

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Fletcher, Adam. "Characterisation of structural and biochemical properties of T. tenax and S. carnosus FBP aldolases, investigating aldol condensation, enantiopurity and the potential for the catalyzation of novel products." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/characterisation-of-structural-and-biochemical-properties-of-t-tenax-and-s-carnosus-fbp-aldolases-investigating-aldol-condensation-enantiopurity-and-the-potential-for-the-catalyzation-of-novel-products(f0b3a3b1-e9ed-4f4a-98b7-d355b0a0bf40).html.

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The Morita-Baylis-Hillman (MBH) reaction is a carbon-carbon (C-C) bond forming reaction between an activated alkene and an aldehyde. It is a synthetically useful reaction due to the high atom economy and retention of multiple functional groups. Unfortunately, harsh reaction conditions are required during the MBH reaction and unpredictable product stereospecificity have hampered the widespread application of this reaction. Catalysis of the MBH reaction by enzymes has the potential to allow the reaction to occur at ambient conditions, while offering scope for improving the stereospecificity. This thesis focussed on the enzyme design of a MBH enzyme using thermostable fructose-1,6- bisphosphate (FBP) aldolases as scaffolds. These enzymes were chosen because there are common features between the aldol and MBH reactions, both making use of an enol intermediate to attack the aldehyde. In addition, aldolases typically accept a wide variety of substrates. Thermostable aldolases were selected for increased temperature tolerance creating a more desirable catalyst for industrial purposes. Thermoproteus tenax FBP aldolase (TtFBPA; WT and W144L, W144Y, K177A variants) and Staphylococcus carnosus FBP aldolase (ScFruA) were expressed and purified from E. coli. While the retro-aldol reaction catalysed by these enzymes could be easily monitored, the reverse reaction (aldol synthesis) is more difficult to quantify. Multiple methodologies for high throughput spectrophotometric detection of aldol activity were developed as a method of monitoring constructs made during directed evolution of the FBP aldolases. However, none of these proved successful in robustly determining aldol activity. The dihydroxyacetone phosphate (DHAP) mimic 1-hydroxy-3-buten-2-one phosphate (HBOP) was used to assay for MBH catalysis. While crystallographic studies with TtFBPA suggest that HBOP is bound to W144L TtFBPA in a manner compatible with the MBH reaction. NMR studies could not detect any corresponding activity. This suggests further protein engineering will be required to evolve this FBP aldolase to an MBH catalyst. In addition, our crystallographic and NMR studies with TtFBPA reveals this enzyme is capable of catalysing the formation of both FBP and tagatose-1,6-bisphosphate (TBP).Additionally, we determined the first structure of ScFruA. Interestingly, NMR experiments suggested ScFruA lacks significant control of the stereospecificity of the aldol condensation reaction and appears to catalyse the formation of FBP, TBP, xyluose-1,6- bisphosphate and psicose-1,6-bisphosphate. We conclude that while FPB aldolases could indeed provide useful scaffolds for the development of an MBH catalyst, the enzymes lack any inherent activity, necessitating the need for future creation of variants. The success of this approach will depend on the ability to screen mutant libraries for MBH product formation.
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Chung, Sangwoo. "Continuous Matrix Product Ansatz for One-dimensional Fermi Systems." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1468337302.

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Surivet, Françoise. "Synthèse et caractérisation de matériaux hybrides organiques-inorganiques : les céramères." Lyon, INSA, 1992. http://www.theses.fr/1992ISAL0002.

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De nouvelles formulations hybrides organiques / inorganiques ont été mises au point en vue d'applications optiques. La nature de la séquence souple de type polybutadiène hydrogéné ou polydiméthylsiloxane confère à ces nouveaux matériaux hybrides de bonnes propriétés telles qu'une excellente tenue aux U. V et une bonne résistance à l'oxydation. Devant la relative complexité des phénomènes, nous avons suivi les réactions d'hydrolyse et de condensation des fonctions alcoxy-silane sur des macromères modèles. La résonance magnétique nucléaire du silicium et la chromatographie par exclusion de taille nous nous ont permis de caractériser complètement les différents produits de réaction et de modéliser le schéma réactionnel. L'étude de ces réactions a été complétée par des études concernant la gélification. Les réactions d'hydrolyse et de condensation sont très rapides. Par la suite , le ralentissement de la réaction pourrait être attribué d'une part à la diminution de la réactivité des groupements réactifs et d'autre part à des changements de phase et /ou de vitrification. La structure complexe des céramères a été étudiée en confrontant deux techniques d'analyse, l'analyse mécanique dyn~que et la diffusion des rayons X aux petits angles. Nous avons ainsi montré que la nature chimique et la masse molaire de l'oligomère, ainsi que les différents traitements thermiques affectent la structure des réseaux. La miscibilité des séquences uréthane-urée avec l'oligomère de départ semble également jouer un rôle important quant à la morphologie des céramères
Investigations on new hybrid organic/inorganic materials , the ceramers were focused on the use of silane-terminated organic macromers for different applications such as coupling coatings or adhesives. The hydrolysis and poly condensation reactions involving alkoxy-silane groups have been studied using model compounds. The molecular weight evolution and the appearance of the different condensed species are followed by silicone nuclear magnetic resonance and size exclusion chromatography. If hydrolysis is very fast, the condensation reaction occurs at a lower rate. The polymerization process is controlled by the reactivity of the functional groups and depends on how many of these functional groups have been condensed. Finally, substitution effects are also increased by structural transformations : phase separation and vitrification. The nature, the molecular weight of the macrodiol and the curing process affect the structure of ceramers. By using two complementary analysis, dynamic mechanical analysis and small angle X-ray scattering analysis, the complex structure of ceramers has been modelised
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Yeung, Priscilla. "A quantitative comparison of the fill density of MTA produced by two different placement techniques." VCU Scholars Compass, 2005. http://scholarscompass.vcu.edu/etd/886.

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The purpose of this study was to quantitatively compare the fill density of MTA produced by hand condensation and hand condensation with indirect ultrasonic activation. Thirty acrylic block with 30 degree curved canals (group C) and 30 with straight canals (group S) were instrumented to a final apical size of 45 of 0.06 taper crown-down technique. After irrigating with water and drying with paper points, each block was weighed to the nearest 0.0001g with a digital electronic balance. In half of the specimens, chosen at random, the canal first filled with MTA using the hand condensation method (H) then weighed. The MTA was removed. The canal was rinsed, dried, and refilled using hand condensation with indirect ultrasonic activation (US). In the other half of the specimens, the procedure was carried out identically but in reverse order. The blocks were weighed again after cleaning the MTA from the canal as well as after refilling the canal using indirect ultrasonic condensation. Data comparing the weight of MTA between the two placement methods and the two canal configurations were analyzed by a two-way ANOVA. There was a statistically significant increase in weight of MTA produced by ultrasonic activation than by hand condensation in groups C (p<.0001) and S (p<.0001). However, there was no statistically significant difference when comparing the straight canal versus the 30-degree curved canal (p = .08). In group C, ultrasonic condensation resulted in a 10.07% increase in the weight of MTA over hand condensation alone. Similarly in group S, there was a 9.1% increase in the weight of MTA over hand condensation. In conclusion, hand condensation with indirect ultrasonic activation resulted in an MTA fill that was denser than that accomplished by hand condensation alone.
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Books on the topic "Condensation products"

1

Barshteĭn, R. S. Kataliticheskai͡a︡ polikondensat͡s︡ii͡a︡. Moskva: "Khimii͡a︡", 1988.

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Daszkiewicz, Zdzisław. Aromatyczne nitraminy: Synteza, struktura, właściwości, przegrupowanie. Opole: Wydaw. UO, 2004.

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Erickson, Wayne D. Finite-rate water condensation in combustion-heated wind tunnels. Hampton, Va: Langley Research Center, 1988.

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Kenji Mizoguchi: Un art de la condensation. Berne: P. Lang, 1991.

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E, Carraher Charles, Swift Graham 1939-, American Chemical Society. Division of Polymeric Materials: Science and Engineering., and American Chemical Society Meeting, eds. Functional condensation polymers. New York: Kluwer Academic/Plenum Publishers, 2002.

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E, Carraher Charles, Swift Graham 1939-, American Chemical Society. Division of Polymeric Materials: Science and Engineering., and American Chemical Society Meeting, eds. Functional condensation polymers. New York: Kluwer Academic/Plenum Publishers, 2002.

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Jr, Charles E. Carraher, and Graham G. Swift. Functional Condensation Polymers. Springer, 2002.

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Stoĭko, Fakirov, ed. Handbook of condensation thermoplastic elastomers. Weinheim: Wiley-VCH, 2005.

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Fakirov, Stoyko. Handbook of Condensation Thermoplastic Elastomers. Wiley-VCH Verlag GmbH, 2006.

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Fakirov, Stoyko. Handbook of Condensation Thermoplastic Elastomers. Wiley & Sons, Incorporated, John, 2006.

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Book chapters on the topic "Condensation products"

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Crompton, T. R. "Copolymers and Condensation Products." In Manual of Plastics Analysis, 67–91. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4899-1403-3_2.

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Crompton, T. R. "Copolymers and Condensation Products." In Manual of Plastics Analysis, 286–328. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4899-1403-3_8.

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Audrieth, L. F., and Elizabeth B. Mohr. "Cyanate Condensation Products of Carbohydrazide." In Inorganic Syntheses, 36–39. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470132357.ch11.

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Carraher, Charles E., Ann-Marie Francis, and Deborah W. Siegmann-Louda. "Synthesis and Structural Characterization of Chelation Products between Chitosan and Tetrachloroplatinate Towards the Synthesis of Water Soluble Cancer Drugs." In Functional Condensation Polymers, 207–22. Boston, MA: Springer US, 2002. http://dx.doi.org/10.1007/0-306-47563-4_15.

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Collins, Michael A. "Acetaldehyde and Its Condensation Products as Markers in Alcoholism." In Recent Developments in Alcoholism, 387–403. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4615-7718-8_22.

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Nelson, D. A., J. A. Russell, and P. M. Molton. "Formation of Aromatic Compounds from Condensation Reactions of Cellulose Degradation Products—II." In Fundamentals of Thermochemical Biomass Conversion, 1039–50. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-4932-4_58.

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Wachter, Nanette M. "Using NMR To Investigate Products of Aldol Reactions: Identifying Aldol Addition versus Condensation Products or Conjugate Addition Products from Crossed Aldol Reactions of Aromatic Aldehydes and Ketones." In ACS Symposium Series, 91–102. Washington, DC: American Chemical Society, 2013. http://dx.doi.org/10.1021/bk-2013-1128.ch007.

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Stewart, Herbert H., Winn J. Soldani, Charles E. Carraher, and Lisa Reckleben. "Polymeric Auxin Plant Growth Hormones Based on the Condensation Products of Indole-3-Butyric Acid with Bis(Cyclopentadienyl) Titanium IV Dichloride and Dypyridine Manganese II Dichloride." In Inorganic and Metal-Containing Polymeric Materials, 267–93. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4613-0669-6_17.

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Abdulghani, Ahlam J., and Zainab Z. Ahmed. "Synthesis and Characterization of Some New Metal Complexes of Condensation Reaction Products of 3-Amino-1,2,4-Triazole with Isatin, N-Acetylisatin and Bis (2,3-Dioxoindolin-1-yl)Mercury(II)." In Chemistry: The Key to our Sustainable Future, 267–83. Dordrecht: Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-7389-9_20.

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Wada, Hiroaki, Kazuyuki Kuroda, and Chuzo Kato. "Preparation of Boron Nitride/Boron Carbide Ceramics by Pyrolysis of Boric Acid-Glycerin Condensation Product." In Tailoring Multiphase and Composite Ceramics, 179–85. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4613-2233-7_14.

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Conference papers on the topic "Condensation products"

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Block, S., and G. J. Piermarini. "The Pressure Synthesis Of P-Nitroaniline Condensation Products." In 1988 Los Angeles Symposium--O-E/LASE '88, edited by Robert L. Gunshor. SPIE, 1988. http://dx.doi.org/10.1117/12.943951.

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Whitefield, Philip D., Donald E. Hagen, M. Trueblood, M. Barnett, and Charles A. Helms. "Experimental investigation of homogeneous and heterogeneous nucleation condensation processes and products in COIL." In OE/LASE'93: Optics, Electro-Optics, & Laser Applications in Science& Engineering, edited by William E. McDermott. SPIE, 1993. http://dx.doi.org/10.1117/12.145221.

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Bulavka, Vladimir, and Vasiliy Aristov. "Synthesis of 1,2,4,5-benzenetetracarboxylic dianhydride – 4,4’-diaminodiphenyl ether 1 : 2 and 2 : 1 condensation products." In The 12th International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2008. http://dx.doi.org/10.3390/ecsoc-12-01234.

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Punch, Jeff, Ronan Grimes, Greg Heaslip, Timo Galkin, Kyo¨sti Va¨keva¨inen, Vesa Kyyhkynen, and Erkko Elonen. "The Response of Portable Electronics to Transient Conditions of Temperature and Humidity." 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/ht2005-72578.

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The design of portable electronic systems for use in hot and humid conditions represents a significant design challenge for packaging engineers. Humidity drives a range of failure mechanisms: the alteration of material properties; hygro-mechanical stress phenomena; and the acceleration of corrosion and material migration. Moreover, portable electronic products such as mobile phones, CD players and digital cameras can experience rapidly varying conditions of temperature and humidity which, in certain conditions, can cause condensation to form on the internal and external surfaces of the product. Condensation — or even very high relative humidity — is a severe stimulus because it greatly accelerates corrosion and migration mechanisms. This paper considers the response of portable electronics to transient variations of temperature and humidity in order to assess the conditions under which condensation is likely to occur. A first-order coupled hygrothermal model is developed to represent the temperature and humidity response of a typical portable product using simple time constants. Experimental characterisation of a sample product is performed to evaluate the parameters of the model, and it is demonstrated how movement from one environment to another can precipitate condensation. This paper was also originally published as part of the Proceedings of the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems.
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Madduri, Sushma, Bahgat G. Sammakia, William Infantolino, Satish C. Chaparala, Lawrence C. Hughes, and J. Micheal Harris. "Performance Study of a GaAs Based Laser Diode Chip in a Condensing Environment." In ASME 2009 InterPACK Conference collocated with the ASME 2009 Summer Heat Transfer Conference and the ASME 2009 3rd International Conference on Energy Sustainability. ASMEDC, 2009. http://dx.doi.org/10.1115/interpack2009-89115.

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This paper presents a performance study done on semiconductor laser diodes in a moisture condensing environment. Devices with laser diodes are used in a wide variety of electronic applications and in various climatic conditions. The motivation behind this study is a common environmental exposure, where a device using a laser diode is brought into a relatively humid environment (a building) from a cold, outside environment. Under such conditions, condensation occurs on various components of the device, including the diode, and could affect the laser output power. Reliability of the device is a critical concern since the laser diode and the lens are susceptible to failure due to such repetitive condensation conditions. The test vehicle chosen for this study was a 980nm laser diode. These are used in products for a broad range of markets, including data communications, aerospace, material processing, scientific and defense industries [1–3]. These products may be used in environmental conditions that could result in condensation within the product. A hermetic package could address this concern, but it is an expensive option. Nonhermetic packaging for the laser component could help lower the cost of these devices; however reliability is a potential concern. Prior research on laser diodes consists of various reliability measurements on 980nm lasers using stress tests (e.g. accelerated aging tests; thermal cycling tests) [3–6]. Reliability analysis of laser diodes specifically addressing condensation measurements has not been previously reported. A Military Standard Specification [MIL-STD-883E Method 1004.7] titled, ‘Moisture resistance test’ was used to conduct this reliability study [10]. An experimental setup was designed and fabricated. A photonic package with a 980nm laser diode was subjected to repetitive condensing cycles and laser output power was recorded as a function of time, temperature and humidity. The variation in laser output power due to condensation was observed and quantified. The focus of this paper is on performance degradation of the laser diode. The possible mechanisms for this degradation are currently being investigated.
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Inkin, Timur, and I. Shtennikov. "A MATHEMATICAL MODEL FOR PREDICTING THE RATE OF FORMATION OF A CONDENSATION COATING DURING THERMAL EVAPORATION IN VACUUM." In CAD/EDA/SIMULATION IN MODERN ELECTRONICS 2019. Bryansk State Technical University, 2019. http://dx.doi.org/10.30987/conferencearticle_5e0282122d2f44.32093157.

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A mathematical model of the rate of formation of a metal coating on the inner surface of hollow products by thermal evaporation in vacuum from a coaxially located rod evaporator is obtained. An experimental verification of the results of theoretical studies.
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McKellar, Michael G. "The Integration of Process Heat Applications to High Temperature Gas Reactors." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-64124.

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A high temperature gas reactor, HTGR, can produce industrial process steam, high-temperature heat-transfer gases, and/or electricity. In conventional industrial processes, these products are generated by the combustion of fossil fuels such as coal and natural gas, resulting in significant emissions of greenhouse gases such as carbon dioxide. Heat or electricity produced in an HTGR could be used to supply process heat or electricity to conventional processes without generating any greenhouse gases. Process heat from a reactor needs to be transported by a gas to the industrial process. Two such gases were considered in this study: helium and steam. For this analysis, it was assumed that steam was delivered at 17 MPa and 540°C and helium was delivered at 7 MPa and at a variety of temperatures. The temperature of the gas returning from the industrial process and going to the HTGR must be within certain temperature ranges to maintain the correct reactor inlet temperature for a particular reactor outlet temperature. The returning gas may be below the reactor inlet temperature, ROT, but not above. The optimal return temperature produces the maximum process heat gas flow rate. For steam, the delivered pressure sets an optimal reactor outlet temperature based on the condensation temperature of the steam. ROTs greater than 769.7°C produce no additional advantage for the production of steam.
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Gershuni, A. N., A. P. Nishchik, E. N. Pis'mennyi, V. G. Razumovskiy, and I. L. Pioro. "On Features of Thermal Design of Passive Evaporation-and-Condensation Systems of Reactor Thermal Shielding." In 2014 22nd International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/icone22-30133.

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Further development of nuclear engineering is inseparably linked with the requirement of vast application of the passive systems of heat removal running without human intervention. Creation of such systems is impossible, if only conventional engineering solutions are used. As known, to prevent propagation of the fission products into the environment there are three safety barriers. To provide operation of the third safety barrier (containment shell), in particular, of the reactor cavities both in operational and emergency modes a passive evaporation-and-condensation (EC) system of heat removal is proposed. The features of thermal design of the EC systems for thermal shielding of the reactor cavities are considered. They make it possible to determine the optimal main design variables of the EC systems and prove reasonability and efficiency of their application. The performed study validates engineering feasibility of an efficient EC system for thermal shielding of the reactor equipment.
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Basiuk, Vladimir A., and Rafael Navarro-Gonzalez. "Computer simulation of IR spectra as a useful tool for GC/FTIR/MS identification of unusual amidine products of amino acid condensation." In 12th Symposium and School on High Resolution Molecular Spectroscopy, edited by Leonid N. Sinitsa, Yurii N. Ponomarev, and Valery I. Perevalov. SPIE, 1997. http://dx.doi.org/10.1117/12.267806.

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Zhou, Xiao-peng, David J. Kukulka, Jing Li, Jian-Jun Sun, and Wei Li. "Condensation Heat Transfer Characteristics on the Outside of Horizontal Smooth, Herringbone and Enhanced Surface 1EHT Tubes." In ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels collocated with the ASME 2015 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/icnmm2015-48196.

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Heat transfer enhancement plays an important role in improving energy efficiency and developing high performance thermal systems. Phase-change heat transfer processes take place in thermal systems; typically heat transfer enhanced tubes are used in these systems and they are designed to increase heat transfer coefficients in evaporation and condensation. Enhanced heat transfer tubes are widely used in refrigeration and air-conditioning applications in order to reduce cost and create a smaller footprint of the application. Microfins, roughness and dimples are often incorporated into the inner surface of tubes in order to enhance heat transfer performance. Under many conditions, enhanced surface tubes can recover more energy and provide the opportunity to advance the design of many heat transfer products. Convective condensation heat transfer and pressure loss characteristics were investigated for R410A on the outside of: (i) a smooth tube (outer diameter 12.7 mm); (ii) an external herringbone tube (fin root diameter 12.7 mm); and (iii) the 1EHT tube (outer diameter 12.7 mm) for very low mass fluxes. Data was obtained for values of mass flux ranging from 8 to 50 kg/(m2 s); at a saturation temperature of 318 K; with an inlet quality of 0.8 (±0.05) and an outlet quality of 0.1 (±0.05). In a comparison of heat transfer at a low mass flux, both the 1EHT tube and the herringbone tube did not perform as well as the smooth tube. And it’s difficult to analyze the reason for this strange phenomenon.
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Reports on the topic "Condensation products"

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McFarlane, S., C. Sivaraman, and S. Ghan. Cloud Condensation Nuclei Profile Value-Added Product. Office of Scientific and Technical Information (OSTI), October 2012. http://dx.doi.org/10.2172/1052588.

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Kulkarni, Gourihar, Maxwell Levin, and John Shilling. Cloud Condensation Nuclei Hygroscopicity Value-Added Product Report. Office of Scientific and Technical Information (OSTI), August 2021. http://dx.doi.org/10.2172/1818210.

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Toto (Fairless), Tami, Andrew Vogelmann, Satoshi Endo, Krista Gaustad, and Scott Giangrande. Lifting Condensation Level Height (LCL Height) Value-Added Product Report. Office of Scientific and Technical Information (OSTI), April 2022. http://dx.doi.org/10.2172/1808569.

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Kreidenweis, Sonia, Ezra Levin, and Donald Collins. A Multi-Instrument Cloud Condensation Nuclei Spectrum Product (Final Technical Report). Office of Scientific and Technical Information (OSTI), October 2020. http://dx.doi.org/10.2172/1692080.

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