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Crosslinkable epichlorohydrin terpolymers with aromatic pendent groups
Author(s) -
Reina José Antonio,
Cádiz Virginia,
Serra Angels
Publication year - 1997
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.1997.021980230
Subject(s) - epichlorohydrin , chemistry , polymer chemistry , peroxide , organic peroxide , ethylene oxide , radical initiator , polymer , organic chemistry , polymerization , copolymer
Poly(epichlorohydrin) (PECH) and poly[epichlorohydrin‐ co ‐(ethylene oxide)] (PECH‐PEO) were modified with several aromatic carboxylates (benzoate, 4‐(allyloxy)benzoate, 4‐(5‐hexenyloxy)benzoate, 3‐(allyloxy)‐2‐naphthoate, 3‐(5‐hexenyloxy)‐2‐naphthoate and 2‐(allylthio)nicotinate) under solid‐liquid phase transfer conditions to obtain crosslinkable terpolymers with well‐separated double bonds and a low chlorine content. Simultaneously to the substitution reaction, cleavage and crosslinking reactions take place. Most of these polymers were crosslinked by treating a mixture of them with 10 wt.‐% dicumyl peroxide (bis(‐1‐methyl‐1‐phenylethyl) peroxide). In some cases it was more suitable to use 10 wt.‐% 2,2′‐azoisobutyronitrile as initiator, although it always gave low degrees of crosslinking. Arrhenius kinetic parameters could only be determined for crosslinking processes promoted by dicumyl peroxide.