Characterization of microvoids in glassy polymers by means of 129Xe NAM spectroscopy

被引：26

作者：

Suzuki, T ^{[1
]}

Miyauchi, M ^{[1
]}

Yoshimizu, H ^{[1
]}

Tsujita, Y ^{[1
]}

机构：

[1] Nagoya Inst Technol, Polymer Mat Course, Dept Mat Sci & Engn, Showa Ku, Nagoya, Aichi 4668555, Japan

来源：

POLYMER JOURNAL | 2001年 / 33卷 / 12期

关键词：

Xe-129 NMR spectroscopy; Xe-129 NMR chemical shift; glassy polymer; CO2; conditioning; microvoids; Xe sorption property; the dual-mode sorption model;

D O I：

10.1295/polymj.33.934

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Xe-129 NMR chemical shift of Xe-129 sorbed in glassy polymers has been studied in connection A with Xe sorption property. Poly(2,6-dimethyl,1-1,4-phenylene oxide), polystyrene, Bisphenol A polycarbonate, and tetraniethyl-Bisphenol A polycarbonate have been used as glassy polymers. Xe sorption isotherms of glassy polymers have been successfully interpreted by the dual-mode sorption model. Xe-129 NMR chemical shifts of Xe-129 in glassy polymers have shown non-linear low-field shift against sorption amount of Xe. From the Xe density dependence of the Xe-129 NMR chemical shift, it has been able to evaluate mean size of microvoids in glassy polymer, These findings suggest that the Xe-129 NMR spectroscopy is a good tool for characterizing microvoids in glassy polymers.

引用

页码：934 / 938

页数：5