Fluorinated polymers containing perfluoropolyoxyalkylene...

Details Fluorinated polymers containing perfluoropolyoxyalkylene... Fluorinated polymers containing perfluoropolyoxyalkylene...

C - Chemistry, Metallurgy

08

G

C08G 65/48 (2006.01) C08G 18/50 (2006.01) C08G 65/00 (2006.01) C08G 65/329 (2006.01) C08G 81/00 (2006.01)

Patent

CA 2122739

ABSTRACT FLUORINATED POLYMERS CONTAINING PERFLUOROPOLYOXYALKYLENE SEQUENCES AND HAVING THERMOPLASTIC ELASTOMERIC PROPERTIES. Fluorinated polymers having thermoplastic elastomeric pro- perties comprising in the macromolecule perfluoropoly- oxyalkylene sequences of formula: -CF2O-(CF2CF2O)m-(CF2O)n-CF2- (I) where m/n = 0.2 ? 5, are obtained through polycondensation with suitable perfluoropolyoxyalkylene condensation monomers corresponding to formula (I), functionalized with suitable reactive groups and having a functionality at least equal to 1.97, preferably at least equal to 1.99. Such polymers are characterized by an average molecular weight at least 50%, preferably at least 100%, higher than that of the corresponding polymers obtained starting from perfluoropolyoxyalkylenes corresponding to formula (I) having a functionality not higher than 1.96.

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