Hydrolysis and Condensation of Triethoxysilyl End-Functionalized Polyisoprene Using Phase Transfer Catalysts

摘要

Star polymers consist of several linear chains extending from a common core. They can be symmetric with equal length arms,asymmetric with unequal length arms,or heteroarm with chemically different arms. These structures have unique properties useful in a number of different applications.1 This report describes the synthesis of alkoxysilyl end functional polyisoprene polymers and hydrolysis and condensation of the end groups to produce star polymers.2,3 Phase transfer catalysts have proven useful for carrying out the hydrolysis and condensation reactions in organic solvents compatible with the polymer.4