Synthesis, characterization and swelling behaviors of chitosan-g-poly(acrylic acid)/ poly(vinyl alcohol) semi-IPN superabsorbent hydrogels

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 环境材料与生态化学研究发展中心

	Synthesis, characterization and swelling behaviors of chitosan-g-poly(acrylic acid)/ poly(vinyl alcohol) semi-IPN superabsorbent hydrogels
	Wang WB(王文波); Wang AQ(王爱勤)
刊名	Polymers for Advanced Technologies
	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
内容类型	期刊论文
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.