Preparation of alkenyl succinic anhydrides from vegetable oil FAME
نویسندگان
چکیده
منابع مشابه
Ordered liquids and hydrogels from alkenyl succinic ester terminated bola-amphiphiles for large-scale applications.
The present study describes an economic and scalable approach to aqueous mesophases from bola-amphiphiles (BA) obtained via nucleophilic addition of dimer fatty acid based α,ω-polyesterdiols (PES) on cyclic acid anhydrides and conversion of the carboxylic end groups into ammonium salts. Novel bola-amphiphilic head groups are introduced using alkenyl succinic anhydrides (ASA). The additional ter...
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Different succinic anhydrides were used for modification of hydrophobicities of linear and star-shaped poly (e-caprolactone) oligomers with different molecular weights. Hydroxylterminated poly(e-caprolactone) oligomers were acid-functionalized either with succinic anhydride (SAH) or with alkenylsuccinic anhydrides (ASAs) containing 8 or 18 carbons in their alkenyl chains. Hydrophobicities of th...
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The world is confronted with the twin crises of fossil fuel depletion and environmental degradation. The indiscriminate extraction and consumption of fossil fuels have led to a reduction in petroleum reserves. Alternative fuels, energy conservation and management, energy efficiency and environmental protection have become important in recent years. The increasing import bill has necessitated th...
متن کاملComparative Analysis of Eight Esterification Methods in the Quantitative Determination of Vegetable Oil Fatty Acid Methyl Esters (FAME)
Foram comparados os resultados de determinações quantitativas de ésteres metilícos de ácidos graxos de óleos vegetais (soja, linhaça e dendê) entre oito métodos de esterificação com catálises ácidas e básicas. Os métodos selecionados foram descritos por Metcalfe, 1966 (MET, ref. 17); Bannon, 1982 (BAN, ref. 18); Joseph e Ackman, 1992 (JAC, ref. 3); Hartman e Lago, 1973 (HLA, ref. 19); Jham, 198...
متن کاملParallel kinetic resolutions of monosubstituted succinic anhydrides catalyzed by a modified cinchona alkaloid.
Efficient kinetic resolution processes continue to play a critical role in asymmetric synthesis.1 Using two chiral reagents to effect two parallel running enantioselective resolution reactions, Vedejs and co-workers demonstrated that, through minimizing a buildup of the less reactive enantiomer by simultaneously consuming both enantiomers of the racemic starting material, the two resolution rea...
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ژورنال
عنوان ژورنال: Journal of the American Oil Chemists' Society
سال: 2003
ISSN: 0003-021X
DOI: 10.1007/s11746-003-0690-4