Esterification of Pentaerythritol by Carboxylic Acids Научная публикация
Журнал |
Reaction Kinetics, Mechanisms and Catalysis
ISSN: 1878-5190 , E-ISSN: 1878-5204 |
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Вых. Данные | Год: 2016, Том: 117, Номер: 2, Страницы: 417-427 Страниц : 11 DOI: 10.1007/s11144-015-0964-7 | ||
Ключевые слова | Consecutive-parallel reactions, Esterification of pentaerythritol by carboxylic acids, Rate constants | ||
Авторы |
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Организации |
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Информация о финансировании (1)
1 | Федеральное агентство научных организаций России | V.45.3.6. |
Реферат:
Our study of thermal esterification of pentaerythritol by caproic acid in kinetic regime and far from equilibrium has shown that the reaction proceeds via a series of consecutive-parallel steps through the formation of mono-, di- and tri-esters. At the excess of caprioic acid, and at 170 °C, the effective first-order rate constants reduced to a hydroxyl group are approximately equal to kOH1 = 2.0 h−1, kOH2 = 1.0 h−1, kOH3 = 0.84 h−1, and kOH4 = 0.72 h−1. The reaction rates of the consecutive replacements of the OH groups with acid groups during the formation of the monoester are the largest, and decrease for diester and triester formation. The influence of the length and degree of branching of a carboxylic acid residue on the reaction rate of complete esterification is demonstrated: the reaction is slower with a longer (C5, C6 and C8) and more branched (iso-C5 vs. C5) acid. The possibility of a catalytic acceleration of the esterification reaction in the presence of a heterogeneous acid–base catalyst is shown.
Библиографическая ссылка:
Kopyshev M.V.
, Khasin A.V.
, Minyukova T.P.
, Khassin A.A.
, Yurieva T.M.
Esterification of Pentaerythritol by Carboxylic Acids
Reaction Kinetics, Mechanisms and Catalysis. 2016. V.117. N2. P.417-427. DOI: 10.1007/s11144-015-0964-7 WOS Scopus РИНЦ
Esterification of Pentaerythritol by Carboxylic Acids
Reaction Kinetics, Mechanisms and Catalysis. 2016. V.117. N2. P.417-427. DOI: 10.1007/s11144-015-0964-7 WOS Scopus РИНЦ
Даты:
Поступила в редакцию: | 8 окт. 2015 г. |
Принята к публикации: | 2 дек. 2015 г. |
Опубликована online: | 16 дек. 2015 г. |
Опубликована в печати: | 1 апр. 2016 г. |
Идентификаторы БД:
Web of science | WOS:000372544200002 |
Scopus | 2-s2.0-84962135839 |
РИНЦ | 27145496 |
Chemical Abstracts | 2015:2046557 |
Chemical Abstracts (print) | 164:592733 |
OpenAlex | W2202106131 |