KOBUNSHI RONBUNSHU
Online ISSN : 1881-5685
Print ISSN : 0386-2186
ISSN-L : 0386-2186
Copolycondensation of p-Hydroxybenzoic Acid with p-Aminobenzoic Acid
Tatsuro OUCHI, Shigeru NAKA, Minoru IMOTO
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Keywords: Copolycondensation, p-Hydroxybenzoic acid, p-Aminobenzoic acid, X-ray, Crystallinity, Differential thermal analysis, Thermogravimetry, Thermal stability
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1976 Volume 33 Issue 6 Pages 361-364

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Abstract

Copolycondensation of p-hydroxybenzoic acid with p-aminobenzoic acid was carried out. The homopolymers and copolymers were not soluble in usual organic solvents, while they were soluble in concn sulfuric acid on heating. X-ray diffraction of copolymers showed a high crystallinity although lower than that of homopolymers. Differential thermal analysis and thermogravimetry indicated that these copolymers did not degrade below 510°C. The thermal stability increased with the increase of amide fraction.

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