Tong Li, T. J. Willis, A. Padías
Apr 1, 1991
Citations
0
Influential Citations
7
Citations
Journal
Macromolecules
Abstract
Ethyl 1-cyano-2-(p-methoxyphenyl)cyclopropanecarboxylate (ECMC) initiates the diradical polymerization of acrylonitrile (AN) at temperatures above 80 o C. The kinetic equation is R p =k[AN] 1.5 -[ECMC] 0.5 and the apparent activation energy is 13.7 kcal/mol. ECMC exhibits a slight chain-transfer and retarding effect on the polymerization. The molecular weight increase with time is more significant at lower initiator concentrations and a lower temperatures