Production of vinylidene-terminated and sulfide-terminated telechelic polyolefins via quenching with disulfides

摘要

Provided herein are methods for preparing vinylidene-terminated polyolefins. Further provided herein are sulfide-terminated polyolefins.

主权项

1. A method for preparing a vinylidene terminated polyolefin, comprising:
(a) ionizing a polyolefin in the presence of a Lewis acid or mixture of Lewis acids to form an ionized polyolefin; (b) reacting the ionized polyolefin from step (a) with one or more disulfides of formula I to form an intermediate;
RA—S—S—RB  Iwherein RA and RB are each independently alkyl, aryl, aralkyl, or alkaryl; and (c) reacting the intermediate of step (b) with one or more alcohols or amines.