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Linear polythioesters. IV. The effect of hydrogen chloride acceptor on interfacial polycondensation of 4,4′‐di(mercaptomethyl) benzophenone with isomeric phthaloyl chlorides
Author(s) -
Podkoscjelny Wawrzyniec,
Kultys Anna
Publication year - 1981
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1981.070260408
Subject(s) - benzophenone , condensation polymer , chloride , terephthaloyl chloride , polymer chemistry , hydrogen chloride , chemistry , sodium hydroxide , aqueous solution , hydrogen , materials science , inorganic chemistry , organic chemistry , polymer
New polythioesters of better physicochemical and mechanical properties have been obtained by interfacial polycondensation of 4,4′‐di(mercaptomethyl)benzophenone with terephthaloyl, isophthaloyl, and phthaloyl chlorides with the use of sodium hydroxide excess as a hydrogen chloride acceptor. According to preliminary experiments, the best yield and the highest reduced viscosity are reached when the polycondensation at a 1:l ratio of the aqueous to the organic phase is carried out at a temperature of 5–7°C with a little excess of acid chloride with addition time of 0.5–2 min in the presence of 100% excess of NaOH as hydrogen chloride acceptor. The structure of the polythioesters was determined from elemental analysis and infrared spectra. Thermal properties of all polythioesters were determined. Mechanical and electrical properties of only the most interesting polythioesters obtained from isophthaloyl chloride were determined.