Polyether ketones derived from bis[4-(4-fluorobenzoyl)phenyl]phenylphosphine oxide

ii series of new poly(phosphine oxide ether ketone)s has been prepared from bis[4-(4-fIuorobenzoyl)phenyl]phenylphosphine oxide (1) and various bisphe nols by the aromatic nucleophilic substitution reaction in DMAc. Monomer 1 was readily prepared by Friedel-Crafts acylation from bis(4-chloroformylphe nyl)phenylphosphineoxide and fluorobenzene. Film-forming polymers were prod uced which have inherent viscosities ranging from 0.76 to 1.32 dl/g. These polymers are thermally stable to more than 500 degrees C in air and exhibit glass transitions at about 200 degrees C. Water contact angles of these po lymers ranged from 79 to 84 degrees. (C) 1999 Elsevier Science Ltd. AU righ ts reserved.