Relevant bibliographies by topics / Pimelinic acid

Academic literature on the topic 'Pimelinic acid'

Author: Grafiati
Published: 25 July 2024

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Journal articles on the topic "Pimelinic acid"

1

Tothadi, Srinu, and Amala Phadkule. "Does stoichiometry matter? Cocrystals of aliphatic dicarboxylic acids with isonicotinamide: odd–even alternation in melting points." CrystEngComm 21, no. 15 (2019): 2481–84. http://dx.doi.org/10.1039/c9ce00299e.

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This study outlines the synthesis of four cocrystals of aliphatic dicarboxylic acids {pimelic acid to sebacic acid (HOOC–(CH2)n–COOH, n = 5, 6, 7 and 8)} and isonicotinamide in a ratio of 1 : 2.
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2

Dou, Qiang. "Effect of Calcium Salts of Aliphatic Dicarboxylic Acids on the Formation of β Crystalline Form in Isotactic Poly(Propylene)." Advanced Materials Research 391-392 (December 2011): 875–82. http://dx.doi.org/10.4028/www.scientific.net/amr.391-392.875.

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The effects of calcium salts of aliphatic dicarboxylic acids on the polymorphism of iPP have been investigated by means of WAXD, DSC and PLM. It is found that β crystalline form content and nucleation ability of the nucleated iPP are dependent on the carboatomic numbers of the acids. Calcium salts of malonic acid, glutaric acid, pimelic acid and suberic acid are good β nucleators. Calcium salts of succinic acid and adipic acid are α nucleators. Calcium salts of acids with carboatomic numbers of 5 to 8 are good nucleators. The β spherulite size is the smallest in iPP doped with calcium pimelate.
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3

Ahmed, Barham Sharif, Luqman Omar Hamasalih, Kosar Hikmat Hama Aziz, Yousif M. Salih, Fryad S. Mustafa, and Khalid Mohammad Omer. "Efficient Oxidative Desulfurization of High-Sulfur Diesel via Peroxide Oxidation Using Citric, Pimelic, and α-Ketoglutaric Acids." Separations 10, no. 3 (March 15, 2023): 206. http://dx.doi.org/10.3390/separations10030206.

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The widespread use of diesel fuel for transportation, industry, and electricity generation causes several environmental issues via an increase in the amount of sulfur compound emissions. Commercial diesel fuel must be free of sulfur-containing compounds since they can cause several environmental problems. Considering the currently available processes to eliminate sulfur compounds, oxidative desulfurization (ODS) is one of the effective means for this purpose. This work presented a simple, low cost, and efficient ODS system of high-sulfur diesel fuels using peroxide oxidation with the aid of citric, pimelic, and α-ketoglutaric acids. The aim of the study was to investigate the potential of these acids as hydrogen peroxide (H2O2) activators for ODS and to optimize the reaction conditions for maximum sulfur removal. The results showed that citric, pimelic, and α-ketoglutaric acids were effective catalysts for the desulfurization of high-sulfur diesel with an initial sulfur content of 2568 mg L−1, achieving a sulfur removal efficiency of up to 95%. The optimized reaction conditions were found to be 0.6 g of carboxylic acid dosage and 10 mL of H2O2 at 95 °C. The desulfurization efficiency of the real diesel sample (2568 mg L−1) was shown to be 27, 34, and 84.57%, using citric acid, α-ketoglutaric acid, and pimelic acid after 1h, respectively. The effectiveness of the oxidation process was characterized by gas chromatographic pulsed flame photometric detector (GC-PFPD) and Fourier-transform infrared spectroscopy (FTIR) techniques. The experimental results demonstrated that the developed system exhibited high efficiency for desulfurization of real high-sulfur diesel fuels that could be a good alternative for commercial application with a promising desulfurization efficiency.
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4

Burger, Artur, Jan-Olav Henck, and Maria N. D�nser. "On the polymorphism of dicarboxylic acids: I pimelic acid." Mikrochimica Acta 122, no. 3-4 (September 1996): 247–57. http://dx.doi.org/10.1007/bf01245785.

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5

Schaefer, Thomas, Liang Wen, Arne Estelmann, Joely Maak, and Hartmut Herrmann. "pH- and Temperature-Dependent Kinetics of the Oxidation Reactions of OH with Succinic and Pimelic Acid in Aqueous Solution." Atmosphere 11, no. 4 (March 26, 2020): 320. http://dx.doi.org/10.3390/atmos11040320.

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Rate constants for the aqueous-phase reactions of the hydroxyl radical with the dicarboxylic acids, succinic acid and pimelic acid were determined using the relative rate technique over the temperature range 287 K ≤ T ≤ 318 K and at pH = 2.0, 4.6 or 4.9 and 8.0. OH radicals were generated by H2O2 laser flash photolysis while thiocyanate was used as a competitor. The pH values were adjusted to obtain the different speciation of the dicarboxylic acids. The following Arrhenius expressions were determined (in units of L mol−1 s−1): succinic acid, k(T, AH2) (2.1 ± 0.1) × 1010 exp[(−1530 ± 250 K)/T], k(T, AH−) (1.8 ± 0.1) × 1010 exp[(−1070 ± 370 K)/T], k(T, A2−) (2.9 ± 0.2) × 1011 exp[(−1830 ± 350 K)/T] and pimelic acid, k(T, AH2) (7.3 ± 0.2) × 1010 exp[(−1040 ± 140 K)/T], k(T, AH−) (1.8 ± 0.1) × 1011 exp[(−1200 ± 240 K)/T], k(T, A2−) (1.4 ± 0.1) × 1012 exp[(−1830 ± 110 K)/T]. A general OH radical reactivity trend for dicarboxylic acids was found as k(AH2) < k(AH−) < k(A2−). By using the pH and temperature dependent rate constants, source and sinking processes in the tropospheric aqueous phase can be described precisely.
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6

López-Sánchez, Aroa, Belén Floriano, Eloisa Andújar, Maria José Hernáez, and Eduardo Santero. "Tetralin-Induced and ThnR-Regulated Aldehyde Dehydrogenase and β-Oxidation Genes in Sphingomonas macrogolitabida Strain TFA." Applied and Environmental Microbiology 76, no. 1 (November 6, 2009): 110–18. http://dx.doi.org/10.1128/aem.01846-09.

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ABSTRACT A new cluster of genes has been found downstream of the previously identified thnA2 gene. The gene products are similar to nonacylating aldehyde dehydrogenases (ThnG) and to proteins representing a complete β-oxidation pathway (ThnH to ThnP). ThnG has a nonacylating NAD-dependent pimelic semialdehyde dehydrogenase activity that renders pimelic acid a seven-carbon dicarboxylic acid. For further metabolism via β-oxidation, pimelic acid could be acylated by a constitutive acyl coenzyme A (acyl-CoA) ligase found in Sphingomonas macrogolitabida strain TFA or by ThnH, which would transfer CoA from a previously acylated molecule. The first round of β-oxidation is expected to render glutaryl-CoA and acetyl-CoA. Glutaryl-CoA dehydrogenase (ThnN) would catalyze the oxidation and decarboxylation of glutaryl-CoA and yield crotonyl-CoA, which enters the central metabolism via acetyl-CoA. Mutagenesis studies have shown that these genes are not essential for growth on tetralin or fatty acids, although a thnG disruption mutant showed threefold less pimelic semialdehyde dehydrogenase activity. Transcriptional analysis indicated that these genes are induced by tetralin, subjected to catabolite repression, and regulated by the same regulatory factors previously identified to regulate other thn structural genes. In the present study, transcription initiation upstream of thnH and thnM has been detected by primer extension analysis, and putative promoters were identified by sequence analysis. In addition, binding of the activator ThnR to its putative binding sites at the PH and PM promoter regions has been characterized. These results provide a complete characterization of the biodegradation pathway of tetralin to central metabolites and describe the transcriptional organization of the thn operons in S. macrogolitabida strain TFA.
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7

Xu, Wei, Wen-xiang Huang, and Hong-yan Chen. "Pimelic acid–urea (1/2)." Acta Crystallographica Section E Structure Reports Online 67, no. 7 (June 25, 2011): o1795. http://dx.doi.org/10.1107/s1600536811023439.

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8

Li, Hua, Juan Liu, Jiang Zhu, Lei Zhao, and Yadong Zhang. "Solubility of pimelic acid in water." Russian Journal of Physical Chemistry A 85, no. 8 (July 8, 2011): 1472–74. http://dx.doi.org/10.1134/s0036024411080139.

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9

Roy, Siddhartha, Desh Deepak Singh, and M. Vijayan. "X-ray studies on crystalline complexes involving amino acids and peptides. XLII. Adipic acid complexes of L- and DL-arginine and supramolecular association in arginine–dicarboxylic acid complexes." Acta Crystallographica Section B Structural Science 61, no. 1 (January 19, 2005): 89–95. http://dx.doi.org/10.1107/s0108768104030010.

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The adipic acid complexes of DL-arginine and L-arginine are made up of zwitterionic, singularly positively charged arginium ions and doubly negatively charged adipate ions, with a 2:1 stoichiometry. One of the two crystallographically independent arginium ions in the L-arginine complex has a conformation hitherto unobserved in crystal structures containing the amino acid. In the present study the structural data on arginine complexes of saturated dicarboxylic acids with 0–5 C atoms separating the two carboxyl functions are given. In terms of molecular aggregation, formic and acetic acid complexes behave in a similar way to those involving fairly long carboxylic acids such as adipic acid. By and large, the supramolecular assembly in complexes involving dicarboxylic acids with 3 or more C atoms separating the carboxyl groups (glutaric, adipic and pimelic acids), and those involving formic and acetic acids, have common features. The aggregation patterns in complexes involving oxalic, malonic and maleic acids do not share striking features among themselves (except for the mode of hydrogen-bonded dimerization of arginium ions) or with those involving larger dicarboxylic acids. Complexes of succinic acid, the shortest linear dicarboxylic acid, share features with those involving shorter as well as longer dicarboxylic acids. The difference in the behaviour of long and short dicarboxylic acids and the ambiguous behaviour of succinic acid can be broadly related to their lengths.
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10

Broda, Jan, Marcin Baczek, Janusz Fabia, Dorota Binias, and Ryszard Fryczkowski. "Nucleating agents based on graphene and graphene oxide for crystallization of the β-form of isotactic polypropylene." Journal of Materials Science 55, no. 4 (September 26, 2019): 1436–50. http://dx.doi.org/10.1007/s10853-019-04045-y.

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Abstract During the investigations, functionalization of graphene oxide synthesized using modified Hummers’ method and its reduced form was performed. Mixtures of graphene oxide and reduced graphene oxide with pimelic acid and calcium hydroxide were prepared for functionalization. During the reaction, the molecules of pimelic acid were attached to the surface of graphene sheets. By forming links between the carboxylic groups of pimelic acid and graphene oxide, the durable connection was achieved. The functionalized graphene oxide and the reduced graphene oxide were used as additives in isotactic polypropylene crystallization. The influence of additives on crystallisation in non-isothermal conditions was examined using polarized optical microscopy and differential scanning calorimetry. The effect of the additives on the polypropylene structure was analysed using wide-angle X-ray scattering. For both functionalized compounds, the nucleating ability towards β-form of polypropylene was detected. Both additives showed the increase in the nucleation rate and promotion of growth of the β-form crystals. Nucleation efficiency similar to other nucleating agents used in the crystallization of the β-form of polypropylene was revealed.
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Dissertations / Theses on the topic "Pimelinic acid"

1

Lin, Dai-Wei, and 林岱蔚. "Measurements of solid-liquid equilibrium for binary mixtures of benzoic acid, glutaric acid, pimelic acid, octanedioic acid, nonanedioic acid, decanedioic acid compounds." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/94663362742351566138.

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碩士
中國文化大學
化學工程與材料工程學系奈米材料碩士班
103
Abstract In this research, we using Differential Scanning Calorimetry ( DSC ) of the solid-liquid equilibria for seven organic binary mixtures―Benzoic acid ( 1 ) + Azelaic acid ( 7 ), Malonic acid ( 2 ) + Pimelic acid ( 5 ), Succinic acid ( 3 ) + Pimelic acid ( 5 ), Glutaric acid ( 4 ) + Suberic acid ( 6 ), Glutaric acid ( 4 ) + Azelaic acid ( 7 ), Glutaric acid ( 4 ) + Sebacic acid ( 8 ), Pimelic acid ( 5 ) + Sebacic acid ( 8 ). Finally, the experimental results are correlated using the Wilson, non-random two-liquid ( NRTL ) and Clarke-Glew ( CG ) activity coefficient models, and use these data to describe the presentation that predict the eutectic temperatures and liquidus temperatures. This study can supply the data of solid-liquid equilibrium for developing in thermodynamics thesis and doing research about thermodynamics and providing basis reference data for industry segregation process.
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2

Deng, Kai-Chung, and 鄧凱仲. "Solid-Liquid Equilibrium of Benzoic acid、Adipic acid、Pimelic acid、Glutaric acid、3-Methylglutaric acid、2,2-Dimethylsuccinic acid and 2,3-Dimethylsuccinic acid Binary Mixtures." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/03434749650539447834.

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碩士
中國文化大學
材料科學與奈米科技研究所
99
Solid-liquid equilibria of the following nine systems have been measured using Differential Scanning Calorimetry ( DSC )：Benzoic acid ( 1 ) + 3-methylpentanedioic acid ( 2 )、Benzoic acid ( 1 ) + 2,3-dimethylbutanedioic acid ( 2 )、Heptanedioic acid ( 1 ) + 2,3-dimethylbutanedioic acid ( 2 )、Heptanedioic acid ( 1 ) + 2,2-dimethylbutanedioic acid ( 2 )、Heptanedioic acid ( 1 ) + 3-methylpentanedioic acid ( 2 )、2,2-dimethylbutanedioic acid ( 1 ) + 3-methylpentanedioic acid ( 2 )、Pentanedioic acid ( 1 ) + 2,2-dimethylbutanedioic acid ( 2 )、Pentanedioic acid ( 1 ) + 3-methylpentanedioic acid ( 2 )、Pentanedioic acid ( 1 ) + 2,3-dimethylbutanedioic acid ( 2 ). The experimental data were compared with the results calculated from the Wilson and the NRTL model. The study can supply the data of solid-liquid equilibrium for developing in thermodynamics thesis and providing basis reference data for industry segregation process.
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Book chapters on the topic "Pimelinic acid"

1

Holze, Rudolf. "Ionic conductance of pimelic acid." In Electrochemistry, 565. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-49251-2_532.

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