Linear polythioesters. X. Products of interfacial polycondensation of bis(4-mercaptophenyl)ether with izomeric phthaloyl chlorides

New polythioesters were obtained by interfacial polycondensation of bis(4‐mercaptophenyl)ether with phthaloyl, isophthaloyl, and terephthaloyl chlorides. To determine the optimal conditions for interfacial polycondensation, the influence of the following factors on yield and value of reduced viscosi...

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Published in:Journal of applied polymer science 1985-04, Vol.30 (4), p.1579-1585
Main Authors: Podkoscielny, Wawrzyniec, Wdowicka, Danuta
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description New polythioesters were obtained by interfacial polycondensation of bis(4‐mercaptophenyl)ether with phthaloyl, isophthaloyl, and terephthaloyl chlorides. To determine the optimal conditions for interfacial polycondensation, the influence of the following factors on yield and value of reduced viscosity were studied: organic phase, 100% excess of sodium hydroxide, contribution of benzyltriethylammonium chloride as a catalyst, and the temperature of the reaction. A thorough examination of the process was carried out only for polycondensation of dithiol with phthaloyl chloride. Yield of all reaction products as well as reduced viscosity of only polythioesters from dithiol and phthaloyl chloride were found because these were the ones which were soluble in tetrachloroethane. The structure of all polythioesters was determined by elemental analysis and infrared spectra. Initial decomposition and initial intensive decomposition temperature were defined by the curves of thermogravimetric analysis. Some mechanical and electrical properties of polythioesters were determined.
doi_str_mv 10.1002/app.1985.070300423
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title Linear polythioesters. X. Products of interfacial polycondensation of bis(4-mercaptophenyl)ether with izomeric phthaloyl chlorides
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