Highly crystalline polyimide particles

被引：35

作者：

Nagata, Y ^{[1
]}

Ohnishi, Y ^{[1
]}

Kajiyama, T ^{[1
]}

机构：

[1] KYUSHU UNIV,FAC ENGN,DEPT CHEM SCI & TECHNOL,HIGASHI KU,FUKUOKA 812,JAPAN

来源：

POLYMER JOURNAL | 1996年 / 28卷 / 11期

关键词：

highly crystalline polyimide; polyimide particle; spherulite; polyamic acid; thermal imidization;

D O I：

10.1295/polymj.28.980

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Several kinds of highly crystalline polyimide particles were obtained by heating polyamic acid solutions at 180 degrees C that induced the thermal imidization of polyamic acids in N-methyl-2-pyrrolidone (NMP). The morphology of the particles was a sheaf or coral type that was similar to a polymer spherulite. The WAXD analysis revealed that the particles were highly crystalline. The size of the particles was in the range from 1 mu m to 10 mu m. It was concluded from the electron diffraction studies that the molecular axis of polyimide in the (PMDA/PPD) particle lay perpendicular to the sheaf surface.

引用

页码：980 / 985

页数：6

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