Summary
High molecular weight poly(phenylene sulfide sulfone/phenylene sulfide ketone) copolymer was synthesized by the step polycondensation of sodium sulfide (Na2S·xH2O) with 4,4′-dichlorobenosulfone (DCDPS), 4,4′-difldibenzophenone (DFBP) between 180∼202 °C at normal pressure. The copolymer was characterized by FT-IR spectrum, UV spectrum, 1H-NMR spectrum, X-ray diffraction and small angle light scattering (SALS), DSC and TGA. The more ketone in the copolymer chain, the better thermal properties of the PPSS/Ks resins have. The copolymer was found to be amorphous but has little local ordering structures with the content of ketone in the range of 0∼45% which is different from other high pressure polymerization.
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Xu, Sx., Yang, J., Long, Sr. et al. Synthesis and characterization of poly(p-phenylene sulfide sulfone/ketone) copolymer. Polym. Bull. 54, 251–261 (2005). https://doi.org/10.1007/s00289-005-0392-3
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DOI: https://doi.org/10.1007/s00289-005-0392-3