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A mathematical model for polymerization of isoprene with n ‐butyllithium in hexane
Author(s) -
Porter Raymond E.,
Ahmad Abu,
Anthony Rayford G.
Publication year - 1974
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.1974.070180618
Subject(s) - isoprene , polymerization , butyllithium , molar mass distribution , molar ratio , hexane , chemistry , polymer chemistry , organic chemistry , polymer , copolymer , catalysis
Isoprene was polymerized in batch reactors by use of bottle polymerization techniques at 30°, 40°, and 50°C at concentrations from 1 to 5 molar. Butyllithium concentration was varied from 0.005 to 0.03 molar. Isoprene and n ‐butyllithium conversions and molecular weight distributions were determined for different reaction times. Rate equations for the initiation and propagation reactions are presented. The importance of the association reactions in obtaining a narrow molecular weight distribution is illustrated.