Sulfur containing polymers |
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Authors: | Corrado Berti Elisabetta Marianucci Francesco Pilati |
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Affiliation: | (1) Facoltà di Ingegneria, Istituto Chimico, Viale Risorgimento 2, I-40136 Bologna, Italy |
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Abstract: | Summary Copolymers containing -S-CO-S-and/or -O-CO-S-groups have been synthesized mainly by interfacial polycondensation.Different chemical structures were obtained by reacting 1,3-benzene dithiol (BDT) respectively with phosgene alone, phosgene and bisphenol-A (BPA), bischloroformate of BPA, BPA polycarbonate oligomers and by reacting phosgene with the products of BPA polycarbonate degraded with BDT. The chemical structures of the copolymers were investigated by IR, 1H-NMR and 13C-NMR; molecular weights were determined by viscometry and vapor pressure osmometry. Although no attempt was made to find the optimum conditions for high molecular weight, some copolymers with fairly high mol. weight were obtained. |
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