WATER ETHANOL PERMSEPARATION BY PERVAPORATION THROUGH PHOTOCROSSLINKED POLYVINYL-ALCOHOL) COMPOSITE MEMBRANES

被引：34

作者：

HIROTSU, T

ICHIMURA, K

MIZOGUCHI, K

NAKAMURA, E

机构：

[1] Research Inst for Polymers &, Textiles, Japan

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1988年 / 36卷 / 08期

关键词：

Ethanol--Separation - Membranes--Materials - Polyvinyl Alcohol--Crosslinking - Separation--Equipment;

D O I：

10.1002/app.1988.070360801

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 membranes were water-permselective, and the selectivity was dependent on the state of membranes; namely, incorporation ratio of styrylpyridinium group on poly(vinyl alcohol), molecular weight of the base polymer, coating thickness of a photopolymer, etc. Photocrosslinkable styrylpyridinium group showed, of course, the ionic character by pyridinium moiety to work on permseparation of water effectively as well as preventing the dissolution of membranes by crosslinking. Membranes based on the higher molecular weight poly(vinyl alcohol) gave the higher permselectivity of water in general than those of lower molecular weight one. Swelling of the polymers reached 160%, and permeation rate through the membranes increased with the increase of swelling.

引用

页码：1717 / 1729

页数：13

共 10 条

[1]

BRUSCHKE HEA, 1986, 1ST P PERV PROC CHEM, P1

[2] THE PERMSELECTIVITY OF ION-EXCHANGE MEMBRANES FOR NON-ELECTROLYTE LIQUID-MIXTURES .1. SEPARATION OF ALCOHOL WATER MIXTURES WITH NAFION HOLLOW FIBERS [J].