ISSN:
0887-624X
Keywords:
cationic polymerization
;
benzylpyridinium salts
;
benzylanilinium salts
;
cationic initiators
;
thermal latency
;
latent catalysts
;
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Novel cationic initiators, p-substituted benzylanilinium SbF-6 salts (1), were synthesized from the corresponding benzylchloride and N,N-dimethylaniline, where Cl- was exchanged with SbF-6. Their catalytic activities in the cationic polymerization of glycidyl phenyl ether (GPE) were examined and compared to that of benzylpyridinium SbF-6 salts (2), latent thermal initiators previously reported by Endo et al. It was found that 1 acted as a latent thermal initiator in the cationic polymerization of glycidyl phenyl ether (GPE) above 80°C for 10 min. Furthermore, 1 showed higher activity than 2 having the same p-substituents, except for a p-Cl group in the cationic polymerization of GPE. Both the GPE polymer structure and the benzyl group reactivity in 1 or 2 indicate that 1 generates benzyl cations that are active species for the cationic polymerization of GPE, and that in cationic polymerization using 2, side reactions generating active species other than benzyl cations occur. © 1995 John Wiley & Sons, Inc.
Additional Material:
12 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pola.1995.080330317
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