Determination of hydroxyl groups in epoxy resins by potentiometric titration using a reaction with maleic anhydride

A reaction of maleic anhydride with epoxy-dian resins in methyl ethyl ketene was investigated. It was shown by potentiometric titration that the resulting maleic esters are stable to hydrolysis in acid and weakly acid organic solutions. This reaction can be used for the quantitative determination of hydroxyl groups in epoxy resins. Epoxy groups do not interfere with the formation of maleic esters under the conditions of determination. The optimal reaction conditions were found. The reaction kinetic was investigated, the reaction rate constants were determined at various temperatures, and the activation energy was found. The value of the activation energy indicates that the reaction is characterized by a low potential barrier. © 2001 MAIK "Nauka/Interperiodica".

Авторы
Evtushenko Yu.M.1 , Zaitsev B.E. 2 , Ivanov V.M.3 , Khalturinskii N.A.4 , Evtushenko G.Yu.4
Редакторы
-
Издательство
-
Номер выпуска
11
Язык
Английский
Страницы
1035-1037
Статус
Опубликовано
Подразделение
-
Номер
-
Том
56
Год
2001
Организации
  • 1 AO Elektroizolit, Moscow oblast, 141350, Russian Federation
  • 2 Peoples Friendship University, ul. Miklukho-Maklaya 6, Moscow, 117198, Russian Federation
  • 3 Moscow State University, Vorob'evy gory, Moscow, 119899, Russian Federation
  • 4 Semenov Institute of Chemical Physics, Russian Academy of Sciences, ul. Kosygina 4, Moscow, 117977, Russian Federation
Ключевые слова
2 butanone; carboxylic acid; epoxy resin; hydroxyl group; maleic anhydride; article; chemical reaction kinetics; energy; hydrolysis; potentiometry; quantitative analysis; reaction time; temperature dependence; titrimetry
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/389/