Synthesis and characterization of alginate/silica biocomposites

被引：69

作者：

Coradin, T ^{[1
]}

Livage, J ^{[1
]}

机构：

[1] Univ Paris 06, CNRS, UMR 7574, Lab Chim Mat Condensee, F-75252 Paris 05, France

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2003年 / 26卷 / 1-3期

关键词：

biocomposites; alginate; biomineralization;

D O I：

10.1023/A:1020787514512

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We have investigated the formation of silica/alginate biocomposites. The silica gel was first obtained by the sol-gel route using aqueous precursors, in the presence of the polymer. Gelation of the trapped alginate could be consequently performed by addition of a divalent metal cation. Thermogravimetric analysis, SEM and nitrogen adsorption-desorption experiments indicated that the polymer is located in the macroporosity of the biocomposites so that it can be partially removed by citrate treatment. Even though only weak hydrogen bonds are expected, the morphological features of the composites revealed to depend on the biopolymer content of the initial solution.

引用

页码：1165 / 1168

页数：4

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