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Relevant bibliographies by topics / Butanedioic acid

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Academic literature on the topic 'Butanedioic acid'

Author: Grafiati

Published: 4 June 2025

Last updated: 23 June 2025

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Journal articles on the topic "Butanedioic acid"

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Yong-Soon Kim, Yong-Soon Kim, and Dae-Sik Rha Dae-Sik Rha. "Acute Inhalation Toxicity of Butanedioic Acid: A Study in Rats." Korean Society for Veterinary Nursing 3, no. 2 (2024): 69–75. http://dx.doi.org/10.56878/jvn.2024.3.2.69.

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Britten, J. F., H. E. Howard-Lock, D. Leblanc, and C. J. L. Lock. "(R)-2-Bromo-1,4-butanedioic acid." Acta Crystallographica Section C Crystal Structure Communications 49, no. 6 (1993): 1222–24. http://dx.doi.org/10.1107/s0108270192013210.

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Sudhakar, K., and B. Kalpana. "3, 3’-thiodipropionic acid: A versatile monomer to synthesis aliphatic random copolyesters with biological applications." Research Journal of Chemistry and Environment 25, no. 12 (2021): 19–27. http://dx.doi.org/10.25303/2512rjce1927.

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A prime monomer 3,3’-thiodipropionic acid was mixed with other monomers such as 1,4 butanediol and 1,4 butanedioic acid to produce aliphatic random copolyester Poly(butylthiodipropionate-co-butylbu tanedioate) (PBTBB) by direct melt polycondensation method. The physical properties such as solubility by solubility test, inherent viscosity by Ubbelohde viscometer, Tg by differential scanning colorimetry (DSC) and the crystalline nature by X-ray diffraction (XRD) technique of synthesized polymer were investigated. The chemical structure of the obtained copolyester was studied by FTIR, 1H-NMR and 13CNMR spectroscopy. To resolve the biological applications, the synthesized copolyester was tested for human pathogenic bacteria using well diffusion method, in vitro cytotoxicity against normal Vero cell line, A549 lung cancer cell line by MTT assay and in vitro antioxidant property studied by Dot-Blot assay.

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Peng, Hong, Yong Sun, Junhua Zhang, and Lu Lin. "Degradation of cellooligosaccharides in oxidative medium and alkaline medium: HPLC, FTIR, and GC-MS analyses." BioResources 5, no. 2 (2010): 616–33. http://dx.doi.org/10.15376/biores.5.2.616-633.

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The chemical degradations of highly-purified cellotriose, cellotetraose, and cellopentaose in H2O2 and NaOH media were studied, respectively. The degradation products were analyzed by HPLC, FTIR, and GC-MS techniques. The results show that for the three oligosaccharides the main oxidative degradation products are 2, 3-dihydroxy-butanedioic acid, 2-keto-gluconic acid, glucopyranose, D-glucose, D-gluconic acid, and cellooligosaccharides with lower DP. A small amount of arabinose is formed during the oxidation of cellotriose. The main alkaline degradation products for the three oligomers include 3-deoxy-isosaccharinic acid-1,4-lactone and 3-deoxy-hexonic acid-1,4-lactone. Arabinose coumpounds are found to be an accidental degradation product of cellotriose. Finally, the possible formation mechanisms are proposed, including 2,3-dihydroxy-butanedioic acid, 2-keto-gluconic acid, D-gluconic acid, arabinose, 3-deoxy-isosaccharinic acid-1,4-lactone, and 3-deoxy-hexonic acid-1,4-lactone. The radical attack from H2O2 is probably at the glycosidic linkage, resulting in the formation of a series of degradation products. Degradations of cellooligosaccharides in alkaline solution are elucidated to follow an enediol anion reaction mechanism.

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Videnova-Adrabińska, V. "Symmetry constraints, molecular recognition and crystal engineering. Comparative structural studies of urea–butanedioic and urea–E-butanedioic acid (2:1) cocrystals." Acta Crystallographica Section B Structural Science 52, no. 6 (1996): 1048–56. http://dx.doi.org/10.1107/s0108768196005216.

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The crystal structures of two urea–dicarboxylic acid (2:1) cocrystals have been determined. Urea–butanedioic acid forms monoclinic crystals, space group P21/c (No. 14), with a = 5.637 (4), b = 8.243 (3), c = 12.258 (3) Å, β = 96.80 (5)°, V = 565.6 (8) Å3, Z = 2. Urea–E-butenedioic acid also forms monoclinic crystals, space group P21/c (No. 14), with a = 5.540 (1), b = 8.227 (1), c = 12.426 (3) Å, β = 97.22 (3)°, V = 561.9 (2) Å3, Z = 2. The geometry and the conformation of both molecular aggregates and the three-dimensional networks formed are very similar. The two strongest hydrogen-bond interactions are constrained in the formation of the heteroaggregates, the third hydrogen-bond interaction is used to self-associate the heteroaggregates in one-dimensional chains, whereas the next three weaker hydrogen bonds interconnect the chains into well organized three-dimensional networks.

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Guo, Yihang, Changwen Hu, Shicheng Jiang, Caixin Guo, Yu Yang, and Enbo Wang. "Heterogeneous photodegradation of aqueous hydroxy butanedioic acid by microporous polyoxometalates." Applied Catalysis B: Environmental 36, no. 1 (2002): 9–17. http://dx.doi.org/10.1016/s0926-3373(01)00260-0.

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Ferreira,, José M., Gustavo F. Trindade, Rene Tshulu, John F. Watts, and Mark A. Baker. "Dicarboxylic acids analysed by x-ray photoelectron spectroscopy, Part II - butanedioic acid anhydrous." Surface Science Spectra 24, no. 1 (2017): 011102. http://dx.doi.org/10.1116/1.4977531.

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McGregor, Graeme R. "Daminozide Affects Growth and Yield of ‘Heritage’ Red Raspberry." HortScience 22, no. 1 (1987): 38–40. http://dx.doi.org/10.21273/hortsci.22.1.38.

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Abstract Application of daminozide to young ‘Heritage’ primocanes significantly increased early yields by increasing the number of fruit that ripened on lower fruiting laterals. Daminozide at 2000 ppm applied to 30-cm-high primocanes would enable a commercial crop to be harvested in districts otherwise unsuitable for autumn production. Chemical names used: butanedioic acid mono(2,2-dimethylhydrazide (daminozide).

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Janas, Krystyna M. "The growth-retarding effect of daminozide in Spirodela oligorrhiza (Kurz) Hegelm., and its reversal by gibberellin." Acta Societatis Botanicorum Poloniae 49, no. 4 (2014): 471–76. http://dx.doi.org/10.5586/asbp.1980.042.

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Butanedioic acid mono-(2,2 dimethylhydrazide) (daminozide), in a concentration of 10<sup>-3</sup> M retarded growth of <em>Spirodela oligorrhiza</em> and increased chlorophyll and protein content in the fronds. Gibberellin A<sub>3</sub> and benzylaminopurine partially alleviated the symptoms of daminozide action.

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Thomas, John W., and Jay E. Taylor. "High pressure–temperature aqueous oxidations. III. A kinetic study of the enolization and oxidation of cyclohexanone." Canadian Journal of Chemistry 66, no. 2 (1988): 294–99. http://dx.doi.org/10.1139/v88-051.

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The rates of enolization of cyclohexanone have been determined at 145 and 172 °C in D2O and with buffers. The rates of oxidation were evaluated at temperatures of 145, 172, and 193.5 °C with oxygen partial pressures of 20.4 to 131 atm. The rate of enolization was 10–160 times faster than the rate of oxidation thereby supporting the previously proposed concept of enol intermediacy for the oxidation of ketones. The oxidation was first order in cyclohexanone and 1/2 order in oxygen. The rate of oxidation was increased by the addition of traditional phenolic inhibitors. The products isolated were formic, acetic, butanedioic, pentanedioic, hexanedioic, and 5-oxohexanoic acids. The activation parameters were calculated to be ΔH≠, 22 kcal/mol; ΔS≠, −27 eu, log A, 7.6 for the oxidation and ΔH≠, 12 kcal/mol; ΔS≠, −42.3 eu, log A, 4.13 for the enolization. Based on these observations a mechanism has been postulated whereby an oxygen molecule forms a transitory adduct with two enolates of cyclohexanone. The latter may then split by a reversible reaction to form an intermediate which may then isomerize or oxidize to either 2-hydroxycyclohexanone or 1,3-cyclohexanedione. Upon further oxidation the former yields hexanedioic acid. The latter then undergoes a reverse condensation in the aqueous media to 5-oxohexanoic acid which upon further oxidation yields formic plus pentanedioic acid and acetic plus butanedioic acid.

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Dissertations / Theses on the topic "Butanedioic acid"

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Vries, Ton René. "Chiral cyclic derivatives of C2-symmetrical butanedioic acids." [S.l. : [Groningen : s.n.] ; University Library Groningen] [Host], 1996. http://irs.ub.rug.nl/ppn/29767627X.

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Ly, Bao Khanh. "Hydrogénation de l'acide succinique en phase aqueuse pour l'obtention sélective de 1,4-butanediol." Thesis, Lyon 1, 2013. http://www.theses.fr/2013LYO10053.

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Le but du projet est d’hydrogéner l’acide succinique en phase aqueuse à 160°C, sous 150 bar d’hydrogène pour obtenir sélectivement le 1,4-butanediol (BDO) en utilisant des catalyseurs x%Re-2%Pd/TiO2. Les catalyseurs monométalliques au palladium permettent d’obtenir sélectivement le produit intermédiaire : la γ-butyrolactone et très peu de BDO est obtenu. Leur activité catalytique est fonction de la dispersion de la phase métallique. L’addition de rhénium aux catalyseurs monométalliques au palladium permet de poursuivre la réaction jusqu’à l’obtention du BDO. Nous avons d’abord essayé deux méthodes d’addition ex situ de rhénium : réduction catalytique (RC) et imprégnation successive (IS). La meilleure sélectivité en BDO obtenue jusqu’à maintenant est de 90% en présence du solide 3,4%Re-2%Pd/TiO2 préparé par IS. Quelle que soit la méthode de dépôt (RC ou IS), le rhénium dans ces solides bimétalliques est réoxydé et lixivié dans la phase aqueuse sous l’atmosphère non réductrice. Malgré la lixiviation et le redépôt du rhénium sous hydrogène, le comportement des catalyseurs bimétalliques Re-Pd/TiO2 préparés ces deux méthodes reste différent. Le dépôt in situ de Re conduit à des catalyseurs bimétalliques prometteurs : SBDO = 73% avec 2% de rhénium déposé<br>The aim of our research project is the hydrogenation of the succinic acid in aqueous phase at 160°C, under 150 bar hydrogen to obtain selectively 1,4-butanediol (BDO) by using x%Re- 2%Pd/TiO2 catalyst. Palladium monometallic catalysts allow us to obtain selectively the intermediate product γ-butyrolactone and very little BDO. Their catalytic activity depends on the dispersion of the metallic phase. The reaction can be extended until obtaining BDO by adding the rhenium to palladium based monometallic catalysts. Firstly, we have tried two ex situ methods to add the rhenium: catalytic reduction (CR) and successive impregnation (SI). The best selectivity to BDO is 90% with the presence of 3,4%Re-2%Pd/TiO2 prepared by IS method. Moreover, for both deposition methods, the rhenium in the bimetallic catalysts is reoxidized with air and then leached into the aqueous phase. Despite leaching and redeposition of rhenium under hydrogen pressure, the behavior of bimetallic catalysts prepared by the two methods (CR and SI) is different. In situ deposition of the rhenium leads to promising bimetallic catalysts: SBDO = 73% with 2% of rhenium

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Harding, Christopher Iain. "Development of a butanedione derived chiral glycine equivalent for the synthesis of α-amino acids". Thesis, University of Cambridge, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.603689.

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Chapter one introduces non-proteinogenic α-amino acids and outlines strategies for their synthesis. It focuses in depth on anionic chiral glycine equivalents and examines their advantages and disadvantages. It also introduces the recent developments of a new chiral glycolic acid equivalent with the Ley group. Chapter two details the development of a new chiral glycine equivalent and the subsequent improvements to the synthetic route. Chapter three describes the use of the equivalent in metal enolate mono and dialylation reactions, and the deprotection of these products to form α-amino acids and α,α-amino acids. Chapter four describes the application of the equivalent in studies towards the synthesis of three biologically interesting amino acids: the anti-hypertensive (<i>S</i>)-methyl-DOPA; chiral analogues of immunosuppressant amino alcohol FTY-720 and the cyclic amino acid ACPD <i>via</i> a ring closing metathesis.

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Al-Sibani, Mohammed Abdullah [Verfasser]. "Enhancement of cross-linking efficiency of hyaluronic acid-based hydrogels cross-linked with 1, 4-butanediol diglycidyl ether / Mohammed Abdullah Al-Sibani." Halle, 2017. http://d-nb.info/1136903461/34.

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Wu, Kun-jhang, and 吳坤墇. "Optimization of Immobized Lipase-Catalyzed Butanediol Fatty Acid Esters." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/99118700125099259021.

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碩士<br>大仁科技大學<br>生物科技研究所<br>95<br>The aim of this study using enzyme synthesis to find the best response condition is made to produce coixenolide analogs. Coixenolide is derived from one molecule of butanediol and two molecules of fatty acid (especially C16:1 and C18:1). This study is made to produce coixenolide and its analogs using lipase of Novozyme and Lipozyme to catalyze substrate between different fatty acid (from mix fatty acid from oliva oil, soybean oil, and sunflower oil, single fatty acid form 14 acid, 12 acid, and 16 acid) and butandiol (1,2-butandiol, 1,3-butandiol, 1,4-butandiol, 2,3-butandiol), and the evaluation of physical properties of the products will also be made. The optimum synthesis conditions were as follows: Novozyme to catalyze; temperature 60; reactant molar ratio (free fatty acid℃ : butandiol), 1: 2; reaction time 90 min. Bast of all butandiol the esterification percentage conversion of 1,4- Butandiol was 85%; 1,2-butandiol was 53%; 1,3-butandiol was 62%. 2,3-butandiol was 40%. In free fatty acid, the esterification percentage conversion of the mix fatty acid from oliva oil and soybean oil is 70%; sunflower oil is 64%, single fatty acid form 14 acid is 84%; 12 acid is 64%, 16 acid is 78%.

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Pereira, Joao Pedro Marques. "Otimização de síntese de poliésteres insaturados para aplicações biomédicas." Master's thesis, 2021. http://hdl.handle.net/10316/96067.

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Dissertação de Mestrado Integrado em Engenharia Química apresentada à Faculdade de Ciências e Tecnologia<br>Os poliésteres insaturados são materiais de alto desempenho que têm cada vez mais interesse, já que é possível alterar e combinar as suas propriedades para que possam ser aplicados nas mais variadas áreas, nomeadamente na área biomédica. São sintetizados a partir da policondensação de um ácido carboxílico com um álcool, pelo que são várias as formulações possíveis e as condições reacionais utilizadas.Neste trabalho, foram sintetizados poli(1,4-butileno fumarato) (PBF) e poli(1,4-butileno itaconato) (PBI) a partir da policondensação do 1,4-butanodiol (BTD) com, respetivamente, ácido fumárico (AF) e ácido itacónico (AI). Não foram utilizados solventes nem catalisadores durante a síntese destes materiais, sendo que foram alteradas as condições reacionais, tais como estequiometrias (1:1 e 2:1), temperaturas (160 e 170 °C) e uso, ou não, de vácuo para se estudar a influência destas variáveis nas propriedades do produto final.Os materiais produzidos foram poliésteres insaturados e, dependendo da formulação, apresentaram-se com aparência sólida e cor branca (PBF) ou materiais líquidos e viscosos (PBI). As estruturas dos materiais foram confirmadas a partir de ATR-FTIR e 1H RMN e a sua estabilidade térmica foi estudada através de TGA e DSC. Assim, foi verificado que a degradação destes produtos se dá num total de quatro estágios diferentes e que, para os sólidos brancos, se verificou um comportamento semi-cristalino com temperaturas de transição vítrea (Tg), cristalização (Tc) e fusão (Tm), enquanto os líquidos apresentam um comportamento de materiais amorfos, observando-se apenas TgA variação na estequiometria observou-se através dos espetros ATR-FTIR e 1H RMN, sendo que esta foi a variável que mais influenciou as propriedades dos produtos finais. Visualmente, o excesso de diol tornou os sólidos rígidos em pastosos e os líquidos diminuíram na sua viscosidade, sendo que este aumento na quantidade de diol também permitiu a obtenção de valores ácidos (VA) mais baixos. As propriedades térmicas dos materiais foram influenciadas, sendo que se observou uma diminuição das Tm com o aumento da quantidade de diol, não se conseguindo obter conclusões acerca de eventuais alterações nas Tg.Tanto a variação da temperatura e o uso, ou não, de vácuo não tiveram influência nas propriedades finais dos polímeros, sendo que apenas se verificou que o aumento da temperatura e o uso de vácuo diminuem o tempo reacional.<br>Unsaturated polyesters are high performance materials that have increasingly interest to be applied in different areas, like biomedical applications, because of the ease at which is possible to modify and combine their properties. The polyesters are synthesised trough a reaction of polycondensation between a dicarboxylic acid and an alcohol and there are multiple formulations, and a variety of different reaction conditions can be used.In this work, poly(1,4-butylene fumarate) (PBF) and poly(1,4-butylene itaconate) (PBI) were synthesised by polycondensation of 1,4-butanediol (BTD) with fumaric (AF) or itaconic acid (AI). No solvents or catalysts were used, and some variables were changed so their influence on the final product could be studied. The diol/diacid stoichiometry used were 1:1 and 2:1, with temperatures of 160 or 170°C and the with or without the use of vacuum. Unsaturated polyesters were successfully synthesised, and the resulting materials were presented as white solids (PBF) or viscous liquids (PBI). Their chemical structures were confirmed by ATR-FTIR and 1H NMR, and their thermal properties were studied by TGA and DSC analysis. The materials decomposition was verified in a total of four stages and while the liquids showed an amorphous behaviour with only glass transition temperatures (Tg), the solids showed a semi-crystalline behaviour with all three of the different temperatures, them being glass transition (Tg), crystallisation (Tc) and melting temperatures (Tm).The stoichiometry effect was shown, not only by the difference on the materials consistence but also, by the ATR-FTIR and 1H NMR analysis. The increase in the diol amount led to the obtaining of low acid values (AV) and delayed the formation of crosslinked materials. Also, the thermal properties were influenced by this variable. More amounts of diol led to lower Tm, but it was not possible to get any conclusions about the influence on Tg.The change on reaction temperatures and the use of vacuum did not affect the material’s final properties but led to a decrease on the reaction time.

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Pacheco, Susana Filipa Gonçalves. "Avaliação toxicológica do ácido gama-hidroxibutírico em contexto forense." Master's thesis, 2017. http://hdl.handle.net/10284/6646.

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O ácido gama-hidroxibutírico (GHB) ocorre naturalmente no corpo humano, sendo um metabolito do neurotransmissor ácido gama-aminobutírico (GABA), mas pode igualmente ter origem exógena. Foi inicialmente usado como anestésico, mas foi retirado devido a efeitos colaterais que incluíam convulsões e coma. No final do séc. XX emergiu como droga de abuso, popularmente designado de “ecstasy líquida”, “easy lay” e “fantasia”. Podem ser definidos 3 grupos principais de consumidores de GHB: os fisiculturistas enquanto anabolizante, devido à estimulação da libertação da hormona do crescimento; os predadores sexuais enquanto droga facilitadora de agressões sexuais, devido aos seus efeitos sedativos e amnésicos; e os frequentadores de ambientes recreativos noturnos que tomam a droga devido aos seus efeitos eufóricos. Indivíduos que consomem repetidamente doses elevadas de GHB podem desenvolver tolerância e dependência. Além disso, o consumo de GHB e dos seus análogos gama-butirolactona e 1,4-butanodiol (que são rapidamente metabolizados a GHB) está associado a casos de intoxicações e morte por depressão respiratória. Deste modo, a determinação de GHB e dos seus análogos em amostras biológicas assume grande interesse em Toxicologia Forense. Neste trabalho pretende-se efetuar uma revisão dos aspetos mais relevantes do GHB para a perícia em Toxicologia Forense, com ênfase na farmacocinética e farmacodinâmica, mecanismo de ação e toxicidade. No final, serão abordadas as análises toxicológicas de matrizes biológicas e apresentados alguns casos de estudo nesta temática.<br>Gamma-hydroxybutyric acid (GHB) occurs naturally in the human body, being a metabolite of the neurotransmitter gamma-aminobutyric acid (GABA), but may also have exogenous origin. It was initially used as an anesthetic but was withdrawn due to side effects that included seizures and coma. At the end of the century XX, GHB has emerged as a drug of abuse, popularly termed "Liquid Ecstasy", "Easy Lay" and "Fantasy". Three main groups of GHB consumers can be defined: bodybuilders as an anabolic drug due to stimulation of growth hormone release; sexual predators as a drug that facilitates sexual aggression due to its sedative and amnestic effects; and recreational nightclubs who take the drug because of its euphoric effects. Individuals who repeatedly consume high doses of GHB may develop tolerance and dependence. In addition, the consumption of GHB and its γ-butyrolactone and 1,4-butanediol analogues (which are rapidly metabolized to GHB) is associated with cases of intoxication and death from respiratory depression. Thus, the determination of GHB and its analogues in biological samples assumes great interest in Forensic Toxicology. In this work we intend to review the most relevant aspects of the GHB for expertise in Forensic Toxicology with emphasis on pharmacokinetics and pharmacodynamics, mechanism of action and toxicity. At the end, the toxicological analyzes of biological matrices will be approached and some case studies will be presented.

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Veith, Birgit. "Genom- und Transkriptionsanalyse von Bacillus licheniformis DSM13 - einem Organismus mit großem industriellem Potential." Doctoral thesis, 2005. http://hdl.handle.net/11858/00-1735-0000-0006-ABAB-B.

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Books on the topic "Butanedioic acid"

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Curtis, William, Martin Kemper, Alexandra Miller, Robert Pawlosky, M. Todd King, and Richard L. Veech. Mitigation of Damage from Reactive Oxygen Species and Ionizing Radiation by Ketone Body Esters. Edited by Detlev Boison. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780190497996.003.0027.

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Reactive oxygen and nitrogen species, ROS and RNS, are ubiquitous in living cells. They have beneficial effects but are also the cause of a wide variety of diseases. However adding excessive amounts of reducing agents has a long history of clinical failure. This problem can be overcome by providing a novel ester of D-beta-hydroxybutyrate–R-1,3-butanediol, which is rapidly hydrolyzed to ketone bodies, the metabolism of which leads to the production of NADPH. The free cytosolic [NADP+]/[NADPH] redox potential is the most negative in the cell and sets the potential of the glutathione and ascorbic acid couples. Ketone bodies also act by inhibiting histone deacetylases, activating the transcription factor FOXO3 and increasing the transcription of enzymes involved in the destruction of ROS. Ketone esters would be effective in the treatment of a variety of disparate diseases where ROS play a role, ranging from Parkinson’s disease to radiation sickness and aging.

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Book chapters on the topic "Butanedioic acid"

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Winkelmann, Jochen. "Diffusion coefficient of butanedioic acid in water." In Diffusion in Gases, Liquids and Electrolytes. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-540-73735-3_450.

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Winkelmann, Jochen. "Diffusion coefficient of butanedioic acid in water." In Diffusion in Gases, Liquids and Electrolytes. Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-54089-3_277.

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Winkelmann, Jochen. "Diffusion coefficient of water in 2,3-dihydroxy-butanedioic acid." In Diffusion in Gases, Liquids and Electrolytes. Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-54089-3_1247.

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Winkelmann, Jochen. "Diffusion coefficient of butanedioic acid into urea and water." In Diffusion in Gases, Liquids and Electrolytes. Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-54089-3_2638.

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Winkelmann, Jochen. "Diffusion coefficient of butanedioic acid in butan-1-ol." In Diffusion in Gases, Liquids and Electrolytes. Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-54089-3_276.

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Winkelmann, Jochen. "Diffusion coefficient of 2-hydroxy-butanedioic acid in methanol." In Diffusion in Gases, Liquids and Electrolytes. Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-54089-3_278.

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Winkelmann, Jochen. "Diffusion coefficient of 2,3-dihydroxy-butanedioic acid in methanol." In Diffusion in Gases, Liquids and Electrolytes. Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-54089-3_280.

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Winkelmann, Jochen. "Diffusion coefficient of 2,3-dihydroxy-butanedioic acid in water." In Diffusion in Gases, Liquids and Electrolytes. Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-54089-3_283.

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Winkelmann, Jochen. "Diffusion coefficient of 2-hydroxy-butanedioic acid in butan-1-ol." In Diffusion in Gases, Liquids and Electrolytes. Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-54089-3_279.

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Winkelmann, Jochen. "Diffusion coefficient of 2,3-dihydroxy-butanedioic acid in propan-2-ol." In Diffusion in Gases, Liquids and Electrolytes. Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-54089-3_281.

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Conference papers on the topic "Butanedioic acid"

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Avendano, Marco E., Jianpei Lao, Qiang Fu, Sankar Nair, and Matthew J. Realff. "Environmental Impact of Simulated Moving Bed (SMB) on the Recovery of 2,3-Butanediol on an Integrated Biorefinery." In Foundations of Computer-Aided Process Design. PSE Press, 2024. http://dx.doi.org/10.69997/sct.121375.

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2,3 butanediol (BDO) has garnered recent interest due to the high titer concentrations that can be obtained through biochemical routes and its potential for efficient conversion into long-chain hydrocarbons. BDO separation, however, is challenging given its low volatility and high affinity towards water. In this study, two BDO separation pathways were compared, single distillation and combined simulated moving bed (SMB) adsorption with distillation. The separations were incorporated into a 2018 biorefinery design developed by the National Renewable Energy Laboratory (NREL) to produce renewable fuels from corn stover, with BDO as an intermediate and adipic acid as the co-product. The comparison was performed on the basis of sustainability, using lifecycle greenhouse gas (GHG) emissions as the metric. It was found that using a single distillation column gives GHG emissions of 48 gCO2e/MJ for the renewable fuel. This is lower than 93 gCO2e/MJ for petroleum fuel but is higher compared to the SMB-based process which achieves 21 gCO2e/MJ. Additionally, the minimum fuel selling price (MFSP) of each pathway was computed. Single distillation gave a minimum MFSP of $2.54/GGE (gallon of gasoline equivalent) of fuel, while SMB reached $2.45/GGE. The SMB�s MFSP is lower than the Department of Energy�s (DOE) target of $2.50/GGE, demonstrating this pathway is both an economic and sustainable alternative and a sound separation candidate that can enable the viability of the entire biorefinery. The effect of BDO fermentation titer was also considered through a sensitivity analysis.

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2

Guo, Changhui, Yefu Chen, Dongsheng Wang, and Xuewu Guo. "Research on the dilute acid hydrolysis of corncob and the fermentation of 2,3-butanediol." In 2013 International Conference on Materials for Renewable Energy and Environment (ICMREE). IEEE, 2013. http://dx.doi.org/10.1109/icmree.2013.6893639.

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Dignani, Francesca, and Gabriella Compagnone. "Conser Duetto Technology: An Innovative Approach to the Production of Biodegradable Plastics." In SPE Conference at Oman Petroleum & Energy Show. SPE, 2025. https://doi.org/10.2118/224949-ms.

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Abstract Conser Duetto technology is a revolutionary process that facilitates the production of biodegradable plastic intermediates from maleic anhydride. This Technology represents a really promising process to produce intermediates which are becoming key chemicals for the development of biodegradable plastics. In detail, the innovative and interesting aspect of the Duetto technology is the co-production of butanediol (BDO) and dimethyl succinate (DMS), which are the mean feedstocks for downstream biodegradable polymers plant such as PBS. The origin of this technology starts from the consolidated experience and full knowhow of Conser in the BDO process, optimized through several R&D activities developed on the most critical part of the technology (mainly hydrogenation section), consultants support and deepen literature investigation. The result is the finalization of a new process where the hydrogenation process of diesters of the maleic anhydride occurs in mixed liquid/vapor phase allowing the separation of the DMS through a simples phases separation, differently from other available process, based on the hydrogenation step in vapor phase where the separation of DMS is more complicated. Conser Duetto is a new and improved technology with the aim to simplify the industrial process of manufacturing the raw materials of the PBS products and to decreasing their production cost to make PBS comparable to the other biodegradable polymer, not only in term of characteristics (mechanical, compostability, processability) but also in term of cost. In that sense, Conser Duetto technology, together with the innovative idea to produce PBS by trans-esterification by using DMS as raw material instead of esterification by using Succinic Acid, can represent a real game changer for the PBS industry and can be easily adaptable to the production of BDO and DMS starting from a fossil feedstock (C4 fractions such as butane) or from a bio based feeding (bio succinic acid). The adoption of Conser Duetto technology is in line with global environmental protection efforts and the growing demand for non-invasive and eco-friendly. As regulations tighten and bans on nonbiodegradable plastics become more widespread, technologies like Conser Duetto are poised to play a crucial role in the transition to sustainable materials and reducing the accumulation of plastic waste even starting from a fossil feedstock (C4 fractions such as butane). Conser Duetto technology represents an innovative solution to co-produce butanediol and dimethyl succinate as feedstock for the synthesis of PBS. Proposed process is optimized in terms of capital and operating expense by maximizing energy efficiency and recovery. These attributes make it a valuable solution for industries seeking sustainable production methods, particularly in disposable packaging, as well as in the agricultural sector for mulch films. Key principles of the technology are covered by a patent: EP 4188903.

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Edwards, Peter A., Michael Price, Nick Nimchuk, and Jeff Mahon. "Novel Water Loving Coatings (WLC) Lubricious and Durable Guidewires." In 2017 Design of Medical Devices Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/dmd2017-3434.

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Hydrophilic coatings applied to guidewires or catheters, lower friction of the device thus improves handling and reduces damage to the vessel walls during access, delivery and retrieval. Peripheral guidewires typically consist of a polymer jacket, basecoat and topcoat. The polymer jacket is highly radiopaque for fluoroscopy visualization. Basecoat adheres to the polymer jacket and hydrophilic topcoat. Basecoat and topcoat play important roles towards coating device durability and lubricity. Water Loving Coatings (WLC) are the first developed 510(k) clearance guidewires utilizing epoxy polyurethane technology. Coatings are non-hemolytic and non-cytotoxic. WLC are advances toward glycidyl carbamate (GC) resins. Linear Glycidyl Carbamates have shown excellent flexibility based off structure property relationships [1]. Water dispersible GC (WD-GC) oligomers have been prepared by additions of poly(ethylene glycol) methyl ether (m-peg) to isocyanurate and biuret, then end capped with glycidol [2]. WLC technologies are lubricious and durable water dispersible polyurethane or polyurea glycidyl carbamates [3]. Modified Hyaluronate with WD-GC oligomers have shown increases in lubricity of Guidewires when used with a catheter [4]. WLC coatings have been applied to a micro-wire to reduce endothelial mechanical lining damage [5]. Common thermoplastic urethanes (TPU), similar to WLC morphology, used in the medical industry, are: Biomer and Lubrizol’s Pellethane®, Tecoflex™ and Estane™. Biomer consists of 4,4′-Methylenebis(phenyl isocyanate) (MDI), Ethylenediamine (EDA), and Polytetramethylene diol (Poly THF). Pellethane consists of MDI, 1,4-Butanediol (BDO) and Poly THF. Tecoflex consists of 4-4′-methylenebis (cyclohexyl isocyanate) (H12MDI), BDO and Poly THF. Medical grade Estane is an ester of adipic acid with BDO for soft segments and MDI and BDO for hard segments. TPU structure and morphology dictates polymeric properties.

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Fan, Junhao, Jian Li, Kaihe Lv, et al. "Preparation and Mechanism Study of Resistant to High Temperature and High Salt Hyperbranched Fluid Loss Reducer for Water-Based Drilling Fluid." In GOTECH. SPE, 2025. https://doi.org/10.2118/224789-ms.

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Abstract It is difficult to regulate the flow and filtration characteristics of water-based drilling fluids(WBDFs) in complex formation conditions such as extreme thermal conditions, elevated pressure environments, and hypersaline circumstances. Conventional fluid loss reducer) are mainly linear structure polymers, which have large self-viscosity and have a great impact on the flow and filtration characteristics. In ultra-high temperature and hypersaline circumstances, polymer molecular chains are prone to conformational changes such as crosslinking and twisting, resulting in uncontrollable rheological characteristics of drilling fluids and increased leak-off volume, Cause drilling accident. Aiming at a series of problems of conventional linear fluid loss reducer. In this paper, HBPSi was prepared by transesterification polycondensation reaction using 3-aminopropyl triethoxysilane and 1, 4-butanediol as reactants. Then HBPSi, N,N-dimethyl acrylamide, 2-Acrylamido-2-methylpropane sulfonic acid, dimethyl diallyl ammonium chloride, 1-vinyl-2-pyridone as copolymers, cerium ammonium nitrate as initiator, and water as dispersed phase were used as copolymers, hyperbranched fluid loss reducer HBPSi-DADN was prepared by free radical polymerization. The results show that hyperbranched fluid loss reducer HBPSi-DADN has a highly branched three-dimensional structure, low viscosity and high stability. When 3 wt% HBPSi-DADN is added to the drilling fluid base mud, apparent viscosity is 48mPa·s, apparent viscosity increment was relatively small. When 3 wt% HBPSi-DADN and 30% NaCl are added into drilling fluid base mud, the drilling fluid system exhibited a decrease in apparent viscosity from 26 mPa·s to 23 mPa·s following thermal aging at 200°C, The system viscosity remained relatively stable with no significant alterations observed after thermal aging at 200°C, the high temperature and high pressure filtration loss after aging at 200 °C is only 22mL. Due to its unique three-dimensional branching structure, the hyperbranched fluid loss reducer HBPSi-DADN is easier to interact with bentonite, facilitating stable dispersion, improving overall drilling fluid performance, and promoting the formation of compact filter cake. Compared with linear fluid loss reducer, the hyperbranched fluid loss reducer HBPSi-DADN has excellent temperature and salt resistance, and effectively solves problems of difficult rheological control and significant fluid loss phenomena in drilling fluid systems under high-temperature and high-salinity environments.

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