Pervaporation of aqueous ethanol solution through poly(amidesulfonamide)s (PASAs) membranes

被引：14

作者：

Chan, WH ^{[1
]}

Ng, CF ^{[1
]}

Lam-Leung, SY ^{[1
]}

He, XM ^{[1
]}

机构：

[1] Hong Kong Baptist Univ, Dept Chem, Kowloon, Hong Kong

来源：

POLYMER | 1998年 / 39卷 / 12期

关键词：

poly(amidesulfonamide)s; pervaporation; dehydration of ethanol;

D O I：

10.1016/S0032-3861(97)00557-0

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Symmetric non-porous membranes derived from five poly(amidesulfonamide)s were prepared for the separation of ethanol-water mixtures by the use of the pervaporation technique. It was found that water preferentially permeated through all PASA membranes in all ranges of feed compositions. The relationship between the polymer structure and its pervaporation performance will be discussed. The dependence of permeation rate on the feed composition was explained by the 'carrier-mediated' mechanism. The effect of temperature on the pervaporation characteristics of the materials was investigated in details. Experimental results revealed that the polymer based on the diamino monomer containing the piperazine moiety and isophthaloyl chloride emerged as the best system in terms of separation factor and permeation rate in the dehydration of ethanol. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：2461 / 2467

页数：7

共 26 条

[1] SELECTION OF POLYMERS FOR PERVAPORATION MEMBRANES [J].