Semi-IPN Carrageenan-Based Nanocomposite Hydrogels: Synthesis and Swelling Behavior

被引：29

作者：

Mahdavinia, Gholam Reza ^{[1
]}

Marandi, Gholam Bagheri ^{[2
]}

Pourjavadi, Ali ^{[3
]}

Kiani, Gholamreza ^{[1
]}

机构：

[1] Univ Maragheh, Fac Sci, Dept Chem, Maragheh 5518183111, Iran

[2] Univ Tehran, Fac Soil & Water Engn, Dept Soil Sci Engn, Karaj, Iran

[3] Sharif Univ Technol, Dept Chem, Polymer Res Lab, Tehran 113659516, Iran

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2010年 / 118卷 / 05期

关键词：

nanocomposite; carrageenan; hydrogel; swelling; water retention; VOLUME PHASE-TRANSITION; POLYMER NANOCOMPOSITES; KAPPA-CARRAGEENAN; SUPERABSORBENT; WATER; ACID; ABSORBENT;

D O I：

10.1002/app.32700

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Inclusion of nano-clays into hydrogels is an efficient approach to produce nanocomposite hydrogels. The introduction of nano-clay into hydrogels causes an increase in water absorbency. In the present work, Nanocomposite hydrogels based on kappa-carrageenan were synthesized using sodium montmorillonite as nano-clay. Acrylamide and methylenebisacrylamide were used as monomer and crosslinker, respectively. The structure of nanocomposite hydrogels was investigated by XRD and SEM techniques. Swelling behavior of nanocomposite hydrogels was studied by varying clay and carrageenan contents as well as methylenebisacrylamide concentration. An optimum swelling capacity was achieved at 12% of sodium montmorilonite. The swollen nanocomposite hydrogels were used to study water retention capacity (WRC) under heating. The results revealed an increase in WRC due to inclusion of sodium montmorilonite clay. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 118: 2989-2997,2010

引用

页码：2989 / 2997

页数：9

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