中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Synthesis, characterization and swelling behaviors of chitosan-g-poly(acrylic acid)/ poly(vinyl alcohol) semi-IPN superabsorbent hydrogels

文献类型:期刊论文

作者Wang WB(王文波); Wang AQ(王爱勤)
刊名Polymers for Advanced Technologies
出版日期2011
卷号22期号:5页码:627-634
关键词superabsorbent semi-IPN chitosan poly(vinyl alcohol) swelling
ISSN号1042-7147
通讯作者王爱勤 aqwang@licp.cas.cn
中文摘要A series of granulated semi-interpenetrating polymer network (semi-IPN) superabsorbent hydrogels composed of chitosan-g-poly(acrylic acid) (CTS-g-PAA) and poly(vinyl alcohol) (PVA) were prepared by solution polymerization using ammonium persulfate (APS) as an initiator and N,N(-methylenebisacrylamide (MBA) as a crosslinker. The effects of reaction conditions such as the concentration of MBA, the weight ratio of AA to CTS, and the content of PVA on water absorbency were investigated. Infrared (IR) spectra and differential scanning calorimetry (DSC) analyses confirmed that AA had been grafted onto CTS backbone, and PVA semi-interpenetrating into CTS-g-PAA networks. SEM analyses indicated that CTS-g-PAA/PVA has improved porous surface and PVA was uniformly dispersed in CTS-g-PAA network. The semi-IPN hydrogel containing 10 wt% PVA shows the highest water absorbency of 353 and 53 g g-1 in distilled water and 0.9 wt% NaCl solution, respectively. Swelling behaviors revealed that the introduction of PVA could improve the swelling rate and enhance the pH stability of the superabsorbent hydrogel.
学科主题功能高分子
收录类别SCI
资助信息科技部863项目(2006AA03Z0454,2006AA100215)
语种英语
公开日期2012-08-30
源URL[http://210.77.64.217/handle/362003/86]  
专题兰州化学物理研究所_环境材料与生态化学研究发展中心
推荐引用方式
GB/T 7714
Wang WB,Wang AQ. Synthesis, characterization and swelling behaviors of chitosan-g-poly(acrylic acid)/ poly(vinyl alcohol) semi-IPN superabsorbent hydrogels[J]. Polymers for Advanced Technologies,2011,22(5):627-634.
APA 王文波,&王爱勤.(2011).Synthesis, characterization and swelling behaviors of chitosan-g-poly(acrylic acid)/ poly(vinyl alcohol) semi-IPN superabsorbent hydrogels.Polymers for Advanced Technologies,22(5),627-634.
MLA 王文波,et al."Synthesis, characterization and swelling behaviors of chitosan-g-poly(acrylic acid)/ poly(vinyl alcohol) semi-IPN superabsorbent hydrogels".Polymers for Advanced Technologies 22.5(2011):627-634.

入库方式: OAI收割

来源:兰州化学物理研究所

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