SUMMARY: A new synthetic method of preparing poly(ester-b-sulfone)s from sodium formaldehyde sulfoxylate (SFS) and a diacrylate monomer (1,6-hexanediol diacrylate or 1,9-nonanediol diacrylate) in aqueous solution was studied. The structures of poly(ester-b-sulfone)s were identified and their crystal morphology analyzed. It turned out that the poly(ester-b-sulfone)s crystals were ring-shaped spherulites. The melting point of both poly(ester-b-sulfone)s was 97 8C and 116 8C, respectively. The thermal degradation temperature in both cases was close to 281 8C.
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