Morphology and structure of crystallite polyimide particles prepared by the thermal imidization in polymer solution

被引：5
|
作者：
Nagata, Y [1 ]
Oonishi, Y [1 ]
Kajiyama, C [1 ]
机构：
[1] KYUSHU UNIV,FAC ENGN,DEPT CHEM SCI & TECHNOL,HIGASHI KU,FUKUOKA 812,JAPAN
来源：
KOBUNSHI RONBUNSHU | 1996年 / 53卷 / 01期
关键词：
polyimide particle; precipitation; polyamic acid; good solvent; morphology; spherulite; high crystallinity;
D O I：
10.1295/koron.53.63
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 as the result of thermal imidization of polyamic acids in N-methyl-2-pyrrolidone (NMP). The morphology of the particles was a sheaf or coral that was similar to a spherulite of the polymer, and they were found to be highly crystalline particles from the analysis of WAXS. The size of the particles was in the range from 1 mu m to 10 mu m. The electron diffraction patterns from the crystal plane of (110) and (200) indicated that the molecular axis of the polyimide lies perpendicular to the surface of the sheaf for the PMDA/PPD particle.
引用
收藏
页码：63 / 69
页数：7
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