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Cationic polymerization of 2,3‐dihydro‐4 H ‐pyran using 12‐tungstophosphoric acid as a solid acid catalyst
Author(s) -
Aouissi Ahmed
Publication year - 2010
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.31967
Subject(s) - cationic polymerization , polymerization , catalysis , polymer chemistry , pyran , chain transfer , chemistry , chain propagation , materials science , organic chemistry , polymer , radical polymerization
Abstract The bulk polymerization of 2,3‐dihydro‐4 H ‐pyran catalyzed by 12‐tungstophosphoric acid was investigated. The effects of the time, temperature, and amount of the catalyst on the polymerization reaction were studied. The propagation exclusively involved CC bonds. Propagation by ring opening was not observed. The total polymerization time and the melting temperature decreased as the proportion of the catalyst and the temperature were increased because of the increase in the number of active centers and the chain‐transfer reaction, respectively. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010