PROCESS FOR PREPARING A POLYMER HAVING PERFLUOROCYCLOBUTANE RINGS AND POLYMERS CONTAINING PERFLUOROCYCLOBUTANE RINGS

摘要

The present invention includes a process for preparing a polymer having perfluorocyclobutane rings by the steps of (a) contacting monomers having at least two dimerizable perfluorovinyl groups; and (b) exposing the monomers to heat such time that a polymer containing perfluorocyclobutane rings is formed. The present invention includes polymers having a backbone comprising hydrocarbyl groups, perfluorocyclobutane rings and noncarbon atoms and polymers of at least 10,000 molecular weight having repeating units ¢0-(CFRf)n-0-perfluorocyclobutane!. The present inventions also includes crosslinked polymers having perfluorocyclobutane rings and thermal processes to prepare such crosslinked polymers. Crosslinked polymers have tensile strength and other physical properties enhanced over the properties of the corresponding linear polymer.