Document Type and Number:
Japanese Patent JPS5189881
Kind Code:
A
Abstract:
This disclosure is directed to fluorocarbon polymers, polymeric membranes, and electrochemical cells and processes. The polymers and membranes are produced by radiation techniques to provide improved products. For example, alpha , beta , beta -trifluorostyrene in an inert organic solvent is grafted onto an inert film, such as tetrafluoroethylene-hexafluoropropylene copolymer, by irradiation, i.e. with Co-60 gamma radiation at a dose of several Mrad. The grafted film is then sulfonated, preferably in a chlorosulfonic acid bath. The resulting film is useful as a membrane or diaphragm in various electrochemical cells such as chlor-alkali or fuel cells.
Application Number:
JP15385775A
Publication Date:
August 06, 1976
Filing Date:
December 23, 1975
Export Citation:
International Classes:
C08F8/36; C08F255/02; C08F291/00; C25B13/08; C08J5/22; C08J7/16; C08L25/04; C25B13/00; H01M8/02; H01M8/10; (IPC1-7): C08J5/22; C25B1/46; C25B13/08