MOLECULAR-WEIGHT DEPENDENCE OF GAS-PERMEABILITY AND SELECTIVITY IN COPOLYIMIDES

被引：18

作者：

EASTMOND, GC ^{[1
]}

PAGE, PCB ^{[1
]}

PAPROTNY, J ^{[1
]}

RICHARDS, RE ^{[1
]}

SHAUNAK, R ^{[1
]}

机构：

[1] BP INT PLC,SUNBURY RES CTR,SUNBURY TW16 7LN,MIDDX,ENGLAND

来源：

POLYMER | 1993年 / 34卷 / 03期

关键词：

COPOLYIMIDE; MOLECULAR WEIGHT; GAS DIFFUSION; PERMEABILITY; SELECTIVITY;

D O I：

10.1016/0032-3861(93)90571-Q

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 gas permeation behaviour of a number of polyimide copolymers. including a series of copolyimides of identical structure with different molecular weights, have been investigated. Permeabilities and selectivities were found to vary over a broad molecular weight range at high molecular weights. Differences in permeability with molecular weight can be comparable to differences due to marked changes in chemical structure.

引用

页码：667 / 670

页数：4