A series of poly(aryl ether-bissulfone)s were synthesized from bisphenols, 4,4′-bis(4-chlorophenylsulfonyl)biphenyl, and 4,4′-bis(4-fluorophenylsulfonyl)biphenyl. The bishalide monomers were synthesized by reaction of 4,4′-bis(chlorosulfonyl)biphenyl with a suitable aryl halide. Potassium carbonate mediated reaction in dimethylacetamide gave highmolecular weight polymers in excellent yield. The polymers are soluble in dipolar aprotic solvents. Unlike the corresponding monosulfone analogues, the poly(aryl ether-bissulfone)s exhibited poor solubility in chlorinated hydrocarbons. The glass transition temperatures of the polymers are among the highest known for poly(aryl ether)s (241-271°C). In addition, the polymers exhibit excellent thermal stability and they produce clear, colorless tough films by Solution casting or compression molding.
|Number of pages||18|
|Journal||Journal of Macromolecular Science: Part A - Chemistry|
|State||Published - 1991|