Proton-conducting material for use, e.g., in fuel cells, comprises a polymer with side chains, at least one terminal triorganosilyl group and a strongly-acid functional group

摘要

Proton-conducting material (I) comprising a polymer with side chains grafted onto a main chain, containing at least one triorganosilyl terminal group and a strongly-acid functional group. Proton-conducting material (I) comprising a polymer material with side chains grafted onto a main chain and containing at least one terminal group of formula (II) and a strongly acid functional group in the molecular structure. (Structures (II) and (IIa) (upper and lower structures), page 8) R1, R2, R3 = hydrocarbyl, fluorinated hydrocarbyl or trimethyl-siloxy Independent claims are also included for (1) proton-conducting material (Ia) comprising a polymer derived from a mixture containing a monomer with a vinyl group and a monomer of formula (IIa) containing a strongly-acid functional group (2) a method (M1) for the production of (I) by grafting a side chain onto a main chain to give a structure with terminal group(s) (II) and then introducing a strongly-acid functional group (3) a method (M2) for the production of (Ia) by introducing a strongly acid functional group into a polymer based on a vinyl monomer and a monomer of formula (IIa) . R4, R5, R6 = as for R1-R3 .