Patent ID: 8247614

Claim:
A process for the manufacture of fluorinated copolymers comprising: A) charging a reactor with a nitrogen-based ligand and a copper (I) halide catalyst; B) adding to the reactor a telechelic fluoroazido compound of formula N 3 (Y) p —(CH 2 ) n —R—(CH 2 ) m —(Y) p N 3 wherein Y is SO, SO 2 , C 6 H 4 , or CO, p=0 or 1, n and m are independently 1 to 4, and R is selected from the group consisting of i) an oligomer comprising copolymerized units of vinylidene fluoride and perfluoro(methyl vinyl ether), ii) an oligomer comprising copolymerized units of vinylidene fluoride and hexafluoropropylene, iii) an oligomer comprising copolymerized units of tetrafluoroethylene and perfluoro(methyl vinyl ether), and iv) an oligomer comprising copolymerized units of tetrafluoroethylene and a hydrocarbon olefin; C) adding to the reactor a telechelic diyne or dinitrile compound; and D) reacting said fluoroazido compound (B) and said telechelic diyne or dinitrile compound (C) to form a fluorinated copolymer.