SYNTHESIS OF POLYIMIDE AND POLY(IMIDE-BENZOXAZOLE) IN POLYPHOSPHORIC ACID

被引：21
|
作者：
SAKAGUCHI, Y
KATO, Y
机构：
[1] Toyobo Research Center, Toyobo Co, Ltd, Ohtsu, 520-02
来源：
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 1993年 / 31卷 / 04期
关键词：
POLYMERIZATION; POLYIMIDE; POLY(IMIDE-BENZOXAZOLE); POLYPHOSPHORIC ACID;
D O I：
10.1002/pola.1993.080310425
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A polyimide made from 4,4'-diaminodiphenyl ether (ODA) and 3,3',4,4'-biphenyltetracarboxylic dianhydride (BPDA) was synthesized in polyphosphoric acid. Although the polymerization proceeded heterogeneously, a polyimide with an inherent viscosity of 0.90 was obtained, and a tough and flexible film was made from this polyimide. This polymerization was a one-step reaction including polycondensation and imidization; this was also confirmed by a model reaction between aniline and phthalic anhydride. Utilizing this polymerization method, 3,3'-dihydroxy-4,4'-diaminobiphenyl and 2 mol of 4-aminobenzoic acid were reacted in PPA, then BPDA was reacted to obtain an alternate copolymer containing imide and oxazole rings. This reaction gave a homogeneous solution of the poly (imide-benzoxazole).
引用
收藏
页码：1029 / 1033
页数：5
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