Permeation Properties of Poly(m-xylene adipamide) Membranes

被引：19

作者：

Buquet, Camille Lixon ^{[1
,2
]}

Ben Doudou, Bessem ^{[2
]}

Chappey, Corinne ^{[1
]}

Dargent, Eric ^{[2
]}

Marais, Stephane ^{[1
]}

机构：

[1] Univ Rouen, Lab PBS, FRE 3101, CNRS,MPBM,FR 3038, F-76821 Mont St Aignan, France

[2] Univ Rouen, Inst Mat Res, Lab PBS, CNRS,LECAP,FRE 3101, F-76801 St Etienne, France

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2009年 / 113卷 / 11期

关键词：

WATER; DIFFUSION; FILMS; BLENDS; POLY(ETHYLENE-TEREPHTHALATE); CRYSTALLIZATION; POLYAMIDE; TRANSPORT;

D O I：

10.1021/jp810241z

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The permeation properties of a semiaromatic polyamide, the poly(m-xylene adipamide) (MXD6), were investigated by water and carbon dioxide permeation experiments (pervaporation and gas permeation tests). Complementary microstructure informations were obtained from calorimetric measurements. Amorphous and semicrystalline MXD6 membranes were studied. The analysis of the water flux through amorphous MXD6 membranes showed a plasticization phenomenon followed by a water-induced crystallization. It resulted that the role played by water in these materials was complex because of the dependence of the water diffusivity on water concentration and time. Because of the presence of crystalline phase, a significant reduction of water and gas permeability of MXD6 and an increase in the delay of diffusion were observed. In terms of barrier properties for water and carbon dioxyde, MXD6 membrane crystallized at high temperature were more performant than water-induced crystallized ones. Correlations between microstructure and transport properties had been so established.

引用

页码：3445 / 3452

页数：8

共 33 条

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