Patent ID: 7049393
Filing Date: 2006-05-23
Classification: C08G,C08L

Abstract:
1. A process for preparing a linear fluorinated poly(arylene ether) comprising the repeating unit: wherein n provides a molecular weight up to about 30,000 to 100,000 Da, X represents one of following groups: none, ketone, sulfone, sulfide, ether, hexafluoroisopropylidene, αω-perfluoroalkyleue, oxadiazole, and Y is 4,4′-(hexafluoroisopropylidene)-diphenyl, 4,4′-isopropylidene diphenyl, 3,3′-isopropylidene diphenyl, phenyl, or chlorinated phenol which process comprises reacting a bis(pentafluorophenyl) compound and a bisphenol or hydroquinone mediated by CaH 2 or CaO and in the presence of catalytic amount of an alkali metal salt in a polar aprotic solvent.