Synthesis and properties of #omega#-phenylalkyl-substituted poly(p-xylylene)s prepared by base-induced 1,6-dehydrohalogenation

摘要

Reaction parameters were optimized for the synthesis of high molecular weight #omega#-phenylalkyl-substituted derivatives of poly(p-xylylene) (PPX) by base-induced 1,6-dehydrohalogenation of corresponding 4-halogenomethyltoluenes. Glass transition temperatures decreased systematically with increasing alkyl spacer of the lateral substituent. The highest elongation at break was observed for the 4-phenylbutyl-substituted PPX. Level I tests on the biocompatibility of 4-phenylbutyl-substituted PPX indicated low toxicity.