Thermal behavior of poly(thiocarbonylthio-1,3-phenylene) |
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| Affiliation: | 1. CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China;2. Institute of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei, Anhui 230601, China;1. Department of Chemistry & Chemical Engineering, Syed Babar Ali School of Science and Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore 54792, Pakistan;2. Cancer Therapeutics Laboratory, Department of Biology, Syed Babar Ali School of Science and Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore, Pakistan;3. Department of Chemistry, University of Gujrat, Gujrat 50700, Pakistan;1. Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan;2. Analysis Group, Research and Development Division, Japan Polychem Corporation, Toho-cho 1 Yokkaichi, Mie, 510-0848, Japan |
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| Abstract: | The thermal behavior of poly(thiocarbonylthio-1,2-phenylene) (PTCTP) was investigated from the points of view of both thermal transitions and the reactions which occur on heating at high temperature. In order better to understand the latter, S,S-diphenyldithiocarbonate (DPDTC) was synthesized and its degradation studied.For the thermal transitions it was found that, compared with the analogous poly(1,3-phenylenecarbonate) (PPC), Tg did not change, whereas there was a decrease in Tm.The degradation proceeds through different reaction pathways: the first step seems to be the breaking of the S-carbonyl bond followed by the evolution of CO mainly and, to a lesser extent, of COS. The other reaction products are mainly disulfide and sulfide moieties. |
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