Effect of initiation conditions on the direct polycondensation reaction using triphenyl phosphite and pyridine

Effect of initiation conditions on the direct polycondensation reaction using triphenyl phosphite and pyridine

In a model reaction of terephthalic acid with aniline by using triphenyl phosphite in a mixed solvent of pyridine and N‐methylpyrrolidone (NMP), mono‐ and dianilides were produced with relative yields varying with the content of pyridine in the solvent. The polycondensation of terephthalic acid with...

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Veröffentlicht in:Journal of polymer science. Polymer chemistry edition 1981-11, Vol.19 (11), p.2745-2750
Hauptverfasser: Higashi, Fukuji, Taguchi, Yuji, Kokubo, Nobuyuki, Ohta, Hidemi
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container_end_page 2750
container_issue 11
container_start_page 2745
container_title Journal of polymer science. Polymer chemistry edition
container_volume 19
creator Higashi, Fukuji
Taguchi, Yuji
Kokubo, Nobuyuki
Ohta, Hidemi
description In a model reaction of terephthalic acid with aniline by using triphenyl phosphite in a mixed solvent of pyridine and N‐methylpyrrolidone (NMP), mono‐ and dianilides were produced with relative yields varying with the content of pyridine in the solvent. The polycondensation of terephthalic acid with aromatic diamines was found to proceed more favorably via monoamidation, and highmolecular‐weight polyterephthalamides were prepared by controlling initiation conditions (selective activation of carboxylic groups), such as initial solvent systems, including the amount and kind of pyridines and initiation temperatures.
doi_str_mv 10.1002/pol.1981.170191109
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title Effect of initiation conditions on the direct polycondensation reaction using triphenyl phosphite and pyridine
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