Synthesis of Comb Polysiloxane Polyelectrolytes Containing Oligoether and Perfluoroether Side Chains

Comb polyelectrolytes consisting of a polysiloxane backbone with tetraglyme and lithium-sulfonate terminated perfluoroether side chains have been synthesized. Both types of side chains were independently prepared with allyl functionality and attached to poly(methylhydrosiloxane) by hydrosilylation. Several methods are described to form lithium sulfonate from sulfonate esters. Spectroscopic and thermal characterizations of the resulting polyelectrolyte are described.