Crosslinkable epichlorohydrin terpolymers with aromatic pendent groups

✍ Scribed by José Antonio Reina; Virginia Cádiz; Angels Serra

• Book ID: 102941738
• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 641 KB
• Volume: 198
• Category: Article
• ISSN: 1022-1352
• DOI: 10.1002/macp.1997.021980230

✦ Synopsis

Abstract

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.