Sorption of iodine by polyurethane and melamine-formaldehyde foams using iodine sublimation and iodine solutions

被引：34

作者：

Wang, YB

Sotzing, GA ^{[1
]}

Weiss, RA

机构：

[1] Univ Connecticut, Inst Mat Sci, Dept Chem, Storrs, CT 06269 USA

[2] Univ Connecticut, Polymer Sci Program, Storrs, CT 06269 USA

[3] Univ Connecticut, Dept Chem Engn, Storrs, CT 06269 USA

来源：

POLYMER | 2006年 / 47卷 / 08期

基金：

美国国家科学基金会;

关键词：

anomalous diffusion; distribution law; charge-transfer interaction;

D O I：

10.1016/j.polymer.2006.02.063

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Iodine sorption by polyurethane (PU) and melamine-formaldehyde (MF) foams was studied using both iodine sublimation and iodine solutions with hexanes and toluene. In the sublimation process, the diffusion kinetics was investigated and the interaction between iodine and PU foams was characterized by DSC, TGA, Raman spectroscopy and electrical conductivity measurements. In the solution process, the equilibrium absorption followed the distribution law and the distribution coefficients varied depending on the solvent used. MF foam achieved no iodine absorption in both processes which can be attributed to the lack of charge-transfer interactions. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：2728 / 2740

页数：13

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