Manufacture of fluorine-containing elastic copolymer

Abstract

Abstract PURPOSE:To obtain titled copolymer with excellent low-temperature resistance having considerably low glass transition temperature, by the copolymerization of a specific amount of a fluorovinyl ether having two or more ether bonds with another comonomer. CONSTITUTION:The objective copolymer can be obtaind by polymerizing (1) 15- 50mol% of a fluorovinyl ether of formula[X is 1-3C perfluoroalkyl or omega-hydro- (or choro-)perfluoroalkyl; Y is H, Cl, F or tri-(or di-)fluoromethyl; n =1-4]and (2) another comonomer (e.g., tetrafluoroethylene) in the presence of an initiator (e.g., diacyl peroxide) and, if required, a chain transfer agent (e.g., an alcohol). For the polymerization, any type may be taken (e.g., bulk, suspension, solution).

Inventors

• 👤 Masanaga Tatemoto
• 👤 正祥 建元
• 👤 Toshihiko Amano
• 👤 俊彦 天野

Bibliographic Details