Abstract: A novel fluorine-contained poly(arylene ether) containing phenylphosphine oxide (6F-PAEPO) was synthesized by the nucleophilic substitution between bis(4-chlorophenyl)phenyl phosphine oxide (BFPPO) and 4,4'-(Hexafluoroisopropylidene)diphenol (Bis AF). BFPPO was prepared from dichlorophenylphosphine oxide and 4-bromofluorobenzene through Grignard reaction. The structure of the polymer was confirmed by FTIR, 1H NMR, 31P NMR, and 16F NMR. The polymer exhibited excellent thermal stability, mechanical property and solubility. The glass transition temperature of 6F-PAEPO was 211℃, the temperature for 5% weight loss of 6F-PAEPO in N2 and air were 512 and 523℃, respectively. The maximum trasmittance of the polymer film is above of 80%. Especially, the polymer exhibited an outstanding flame retardancy property due to the existence of triphenylphosphine-oxide moities in the main chain. LOI of the polymer was up to 39.9%.

Key words: Poly(arylene ether), Phenylphosphine oxide, Fluorinate-containing polymer