Gelatin/montmorillonite hybrid nanocomposite. II. Swelling behavior

被引:31
作者
Li, P
Zheng, JP [1 ]
Ma, YL
De Yao, K
机构
[1] Tianjin Univ, Coll Mat Sci & Engn, Tianjin 300072, Peoples R China
[2] Tianjin Univ, Coll Sci, Tianjin 300072, Peoples R China
关键词
nanocomposites; swelling behavior; gelatin; montmorillonite;
D O I
10.1002/app.11689
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Gelatin/montmorillonite (MMT) hybrid nanocomposites with improved thermal and mechanical properties were prepared in a previous work. The swelling behavior (swelling rate, swelling kinetics, maximum solvent uptake, etc.) of the obtained composites was investigated. The results showed that the swelling process of the composites followed second-order kinetics identical to those of the original gelatin. The swelling rate and maximum solvent uptake were greatly suppressed by the presence of MMT and were dependent on the MMT content and pH of the gelatin matrix. Moreover, the swelling mechanism of the polyelectrolyte-intercalated nanocomposites was examined. (C) 2003 Wiley Periodicals, Inc.
引用
收藏
页码:322 / 326
页数:5
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