Abstract
A series of polyarylates containing sulfone or both of ether and sulfone groups were synthesized from diacid chlorides such as 4,4′-sulfonyldibenzoyl chloride (SDBC), 4,4′-[sulfonylbis(1,4-phenylene)dioxy]dibenzoyl chloride (SODBC), and 4,4′-[sulfonylbis(2,6-dimethyl-1,4-phenylene)dioxy]dibenzoyl chloride (4MeSODBC) with various bisphenols by the interfacial polycondensation technique. Moderate to high molecular weight polyarylates with inherent viscosity up to 1.22 dL g−1 were obtained. Most of them were soluble in various organic solvents and afforded transparent, flexible, and tough films by solution casting. Two polyarylates based on SDBC exhibited a moderate level of crystallinity and poor solubility; however, the introduction of ether linkages into the polymer backbone caused a decreased crystallinity and an enhanced solubility. The incorporation of ether groups in the sulfonyl polyarylate main chain led to a decreased glass transition temperature (Tg) or softening temperature (Ts). The methyl-substituted poly(ether-sulfonearylate)s from 4MeSODBC reveal higher Tg or Ts but lower decomposition temperatures than the corresponding nonsubstituted analogs from SODBC.
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Hsiao, SH., Chiou, JH. Polyarylates Containing Sulfone Ether Linkages. Polym J 33, 95–101 (2001). https://doi.org/10.1295/polymj.33.95
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DOI: https://doi.org/10.1295/polymj.33.95
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