Abstract
Aromatic polydithioacetals having inherent viscosities of 0.12–0.24 dl g−1 were synthesized by the solution polycondensation of 4,4′-oxydibenzenethiol with aromatic aldehydes in the presence of polyphosphoric acid trimethylsilyl ester as a condensing agent. These polymers are soluble in a variety of solvents including dimethylformamide, tetrahydrofuran, chloroform, and benzene. They are less thermally stable polymers, and start to decompose above 200°C in air, with 10% weight losses being recorded at 260–270°C on the thermogravimetry curves.
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Kakimoto, Ma., Seri, T. & Imai, Y. Synthesis of Aromatic Polydithioacetals from Aromatic Dithiol and Aromatic Aldehydes by Using Polyphosphoric Acid Trimethylsilyl Ester. Polym J 19, 1303–1307 (1987). https://doi.org/10.1295/polymj.19.1303
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DOI: https://doi.org/10.1295/polymj.19.1303