Patent ID: 8455592

Claim:
A process comprising combining in the presence of a catalyst a non-fluorinated poly(alkylene arylate) first homopolymer and a fluoroether functionalized poly(alkylene arylate) second homopolymer to form a reaction mixture; heating said reaction mixture under vacuum to a temperature above the melting temperatures of each said homopolymer to prepare a molten reaction mixture; and, agitating the molten reaction mixture until a molecular weight of 20,000 to 100,000 Da is achieved; wherein said fluoroether-functionalized poly(alkylene arylate) second homopolymer has repeat units represented by Structure II wherein, Ar represents a benzene or naphthalene radical; each R is independently H, C 1 -C 10 alkyl, C 5 -C 15 aryl, C 6 -C 20 arylalkyl; OH, or a radical represented by the Structure (III) with the proviso that only one R can be OH or the radical represented by the Structure (III); R 1 is a C 2 -C 4 alkylene radical which can be branched or unbranched, X is O or CF 2 ; Z is H, Cl, or Br; a=0 or 1; and, Q represents the Structure (IIa) wherein q=0-10; Y is O or CF 2 ; Rf 1 is (CF 2 ) n , wherein n is 0-10; and, Rf 2 is (CF 2 ) p , wherein p is 0-10, with the proviso that when p is 0, Y is CF 2 .