A New Fluoroelastomer Derived from Tetrafluoroethylene and Propylene

Abstract

Abstract (1) A process to produce C2F4-C3H6 copolymer of molecular weight over 150 000 was established by exploiting a new catalyst which permits low temperature polymerization. (2) A vulcanization recipe, comprised of peroxide and TAIC, was established to give the copolymer superior vulcanizate properties. (3) Polymer structure and properties were elucidated, and the high potential as a heat-resistant elastomer was shown. (4) The resultant vulcanizate has been proved to be a unique fluoroelastomer with outstanding heat and chemical resistance as well as mechanical properties which are adequate in practice.