Patent ID: 8241770
Filing Date: 2012-08-14
Classification: C08J

Abstract:
1. A process for producing a hybrid ion-exchange membrane having functional inorganics and a graft polymer, the process comprising: adding at least one inorganic proton conductor selected from the group consisting of zirconium phosphate (Zr(HPO mixing the ingredients uniformly, shaping the mixture to form a functional inorganics/polymer membrane, exposing the functional inorganics/polymer membrane to an ionizing radiation for a total dose ranging from 10 kGy to 1 MGy, then bringing the membrane into contact with the oxygen-free polymerizable monomer styrene so that the styrene is grafted to the functional inorganics/polymer membrane to prepare a functional inorganics/graft polymer membrane, and reacting the functional inorganics/graft polymer membrane with chlorosulfonic acid to introduce sulfonic acid groups into the phenyl groups in the graft chains.