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Polycondensation of aromatic dicarboxylic acids and bisphenols with a new tosyl chloride/triphenylphosphine oxide/pyridine condensing agent
Author(s) -
Higashi Fukuji,
Ikeda Eishunn
Publication year - 2000
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/1521-3927(20001201)21:18<1306::aid-marc1306>3.0.co;2-j
Subject(s) - triphenylphosphine oxide , pyridine , chemistry , polymer chemistry , triphenylphosphine , dimethylformamide , organic chemistry , chloride , dicarboxylic acid , tosyl , condensation polymer , polyester , polymer , catalysis , solvent
A new condensing agent comprised of tosyl chloride (TsCl) and triphenylphosphine oxide (TPPO) in pyridine was very effective for the preparation of polyesters of aromatic dicarboxylic acids and bisphenols with higher molecular weight than those obtained from TsCl/dimethylformamide in pyridine. Among the phosphorus compounds examined TPPO was most effective, and the reaction using half an equivalent with respect to the carboxyl groups yielded the most favorable results at temperatures of more than 100°C.