COUPLING OF ANIONIC POLYMERS WITH TRIALKOXYSILANES HAVING SILICON-HYDROGEN BONDS.

摘要

A high yield of three-armed radial anionic polymers is produced by the process of coupling metal terminated anionic polymers with a trialkoxysilane having a silicon-hydrogen bond, preferably trimethoxysilane. The metal terminated anionic polymer is preferably produced by initiating polymerization with a protected functional initiator which is readily converted to terminal hydroxyl groups or derivatives thereof, and finds use in adhesives, sealants, and coatings.