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The kinetics of photoinitiated polymerization of 1‐vinyl‐2‐methylimidazole
Author(s) -
Joshi Makarand G.,
Rodriguez Ferdinand
Publication year - 1982
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1982.070270835
Subject(s) - polymerization , kinetics , polymer chemistry , radical polymerization , cationic polymerization , photopolymer , bulk polymerization , ionic polymerization , chemistry , materials science , photochemistry , organic chemistry , polymer , physics , quantum mechanics
The kinetics of isothermal, photoinitiated, solution polymerization of 1‐vinyl‐2‐methylimidazole (MVI) was studied using the standard dilatometric technique. The photoinitiators used were aromatic carbonyl compounds. Most of the experiments were carried out using methanol as solvent, but other solvents were also used. The reaction follows the classical kinetic scheme for free radical polymerization. The activation energy for the polymerization is 3.9 kcal/mol. The polymerization is greatly accelerated by the presence of water in reaction medium. Among the three photoinitiators tried, 2,2′‐diethoxyacetophenone (DEAP) has the highest quantum efficiency for the polymerization of MVI.