Synthesis and Characterization of Poly(Aryl Ether-Bissulfone)s
作者:
D.R. Cummings,
R.S. Mani,
P.B. Balanda,
B.A. Howell,
D.K. Mohanty,
期刊:
Journal of Macromolecular Science: Part A - Chemistry
(Taylor Available online 1991)
卷期:
Volume 28,
issue 8
页码: 793-810
ISSN:0022-233X
年代: 1991
DOI:10.1080/00222339108054057
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
A series of poly(aryl ether-bissulfone)s were synthesized from bis-phenols, 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 di-methylacetamide gave high molecular 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.
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