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Preparation of aromatic polyesters by the direct polycondensation reaction with diphenyl chlorophosphate in pyridine

✍ Scribed by Higashi, Fukuji ;Hoshio, Atsushi ;Kiyoshige, Jun

Publisher: John Wiley and Sons
Year: 1983
Weight: 381 KB
Volume: 21
Category: Article
ISSN: 0360-6376
DOI: 10.1002/pol.1983.170211120

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## Abstract Direct polycondensation reaction of hydroxybenzoic acids with diphenyl chlorophosphate (DPCP) in pyridine was largely improved by carrying out the reaction in the presence of a formamide. Among the formamides examined, __N__,__N__‐dimethylformamide (DMF), __N__,__N__‐dimethylformamide,