FOURIER-TRANSFORM INFRARED-SPECTROSCOPY OF SOME MISCIBLE POLYBENZIMIDAZOLE POLYIMIDE BLENDS

被引：115

作者：

GUERRA, G ^{[1
]}

CHOE, S ^{[1
]}

WILLIAMS, DJ ^{[1
]}

KARASZ, FE ^{[1
]}

MACKNIGHT, WJ ^{[1
]}

机构：

[1] UNIV MASSACHUSETTS,DEPT POLYMER SCI & ENGN,AMHERST,MA 01003

来源：

MACROMOLECULES | 1988年 / 21卷 / 01期

关键词：

POLYIMIDES; -; Blending; SPECTROSCOPY; INFRARED; Applications;

D O I：

10.1021/ma00179a044

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The IR spectra of representative miscible aromatic polybenzimidazole/aromatic polyimide (PBI/PI) blends have been studied. Composition-dependent frequency shifts of up to 55 cm** minus **1 in the N-H stretching band of PBI and up to 6 cm** minus **1 in the carbonyl stretching bands of PI were observed. These shifts were removed by thermally induced phase separation. The results suggest that the miscibility of these blends derives from specific intermolecular interactions involving the greater than NH and carbonyl groups.

引用

页码：231 / 234

页数：4

共 15 条

[1]

CHOE S, UNPUB

[2] FOURIER-TRANSFORM INFRARED-SPECTROSCOPY - PROBING THE STRUCTURE OF MULTICOMPONENT POLYMER BLENDS [J].