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Thermoinitiated cationic polymerization of epoxy resins by sulfonium salts
Author(s) -
Morio Kazuhiko,
Murase Hisashi,
Tsuchiya Hiroshi,
Endo Takeshi
Publication year - 1986
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.1986.070320705
Subject(s) - sulfonium , cationic polymerization , epoxy , polymerization , polymer chemistry , catalysis , amine gas treating , chemistry , materials science , salt (chemistry) , organic chemistry , polymer
Abstract Catalytic activities of benzyl sulfonium salts with nonnucleophilic anions (BF 4 − ,PF 6 − ,AsF 6 − ,SbF 6 − ) for epoxy polymerization were examined. The order of reactivities correlated well with nonnucleophilicity of anions. Epoxy resins catalyzed by these salts are characterized by longer shelf‐life and shorter gel time at high temperature. Some physical properties of cured product were compared with those cured by a commonly used BF 3 amine complex.