Perfluorocyclobutane ring-containing polymers

Details Perfluorocyclobutane ring-containing polymers Perfluorocyclobutane ring-containing polymers

1991-03-22

1992-10-27

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526243, 526244, 526245, 526246, 526247, 526252, 526255, C08F 1220, C08F 1418, C08F11418, C08F21418

Patent

active

051590387

ABSTRACT:
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 sufficient heat and for a sufficient time that a polymer containing perfluorocyclobutane rings is formed. The invention includes polymers having a backbone comprising hydrocarbyl groups, perfluorocyclobutane rings and non-carbon atoms and polymers of at least 10,000 molecular weight having repeating units [O-(CFR.sub.f).sub.n -O-perfluorocyclobutane].

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