Effect of 4-hydroxybenzoic acid on CO2 separation performance of poly(ethylene oxide) membrane

被引：15

作者：

Choi, Yeji ^{[1
]}

Kang, Sang Wook ^{[1
]}

机构：

[1] Sangmyung Univ, Dept Chem, Seoul 03016, South Korea

来源：

MACROMOLECULAR RESEARCH | 2016年 / 24卷 / 12期

基金：

新加坡国家研究基金会;

关键词：

membrane; CO2; separation; poly(ethylene oxide); 4-hydroxybenzoic acid; POLYMER;

D O I：

10.1007/s13233-016-4154-x

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We successfully prepared highly selective poly(ethylene oxide) (PEO) membranes containing 4-hydroxybenzoic acid for CO2 separation. Because 4-hydroxybenzoic acid contains a benzene ring that acts as a barrier against gas transport and also contains hydroxyl and carboxyl groups that enhance the solubility of CO2 molecules, the incorporation of 4-hydroxybenzoic acid was expected to substantially increase the CO2/N-2 selectivity. Indeed, when 4-hydroxybenzoic acid was incorporated into the PEO matrix, the CO2/N-2 selectivity increased from 1.8 to 23 with a CO2 permeance of 8.8 GPU. The coordinative interactions of 4-hydroxybenzoic acid in the PEO matrix were confirmed by Fourier transform infrared spectroscopy. Additionally, thermogravimetric analysis verified that 4-hydroxybenzoic acid was strongly stabilized in the polymer matrix.

引用

页码：1111 / 1114

页数：4

共 19 条

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