The properties of equimolar copolycarbonates of bisphenol A with bisphenol S and 1,4-bis(hydroxymethyl)cyclohexane |
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Authors: | M Yenigul IW Parsons JN Hay RN Haward |
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Affiliation: | Department of Chemistry, University of Birmingham, Birmingham, B15 2TT, UK |
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Abstract: | Ranges of both alternating and random 1:1 copolycarbonates of Bisphenol-A (2,2-bis(4-hydroxyphenyl)propane) and Bisphenol-S (4,4′-dihydroxydiphenyl sulphone) and of Bisphenol-A and 1,4-dimethanoylcyclohexane have been synthesized in order to test the hypothesis that, other things being equal, a more random structured polymer should exhibit superior thermal ageing characteristics. Studies on these materials' mechanical and thermal properties establish that within each pair they are extremely similar and hence the original hypothesis is disproved. |
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Keywords: | Copolymers alternating random polycarbonate polysulphone physical ageing mechanical properties Bisphenol-A Bisphenol-S dimethanoylcyclohexane |
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