Kinetic parameters of the crosslinking of oligoisobutylene dicarboxylic acid by epoxides

Autor:	I.N. Faizullin, I.N. Zaripov, Sh.A. Nasybullin, L.M Lazareva
Rok vydání:	1980
Předmět:	chemistry.chemical_classification chemistry.chemical_compound Dicarboxylic acid Reaction rate constant chemistry General Engineering Organic chemistry Molecule Reactivity (chemistry) Kinetic energy Oligomer Catalysis Catalytic effect
Zdroj:	Polymer Science U.S.S.R.. 22:707-715
ISSN:	0032-3950
DOI:	10.1016/0032-3950(80)90398-6
Popis:	A study has been made of kinetic regularities of the initial stage of the reaction of epoxides with oligoisobutylene dicarboxylic acid in bulk and in solution, and the molecular character of this reaction has been established. It was found that the rate constant of the reaction in bulk was higher than in solution. Tertiary amines are effective catalysts of this reaction, although the share of crosslinking reactions decreases in the presence of tertiary amines. The catalytic effect is due to the formation of a complex between catalyst and oligoisobutylene dicarboxylic acid, the latter complex being more reactive than the free acid molecule. It was found that the reactivity of functional end groups is a function of the molecular weight of the oligomer.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::da0012d30fd8708e8d463f74552a993a https://doi.org/10.1016/0032-3950(80)90398-6 Zobrazit plný text záznamu