pH-responsive carboxymethylcellulose-g-poly (sodium acrylate)/polyvinylpyrrolidone semi-IPN hydrogels with enhanced responsive and swelling properties

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

	pH-responsive carboxymethylcellulose-g-poly (sodium acrylate)/polyvinylpyrrolidone semi-IPN hydrogels with enhanced responsive and swelling properties
	Wang WB(王文波); Wang Q(汪琴); Wang AQ(王爱勤)
刊名	Macromolecular Research
	2011
卷号	19 期号:1 页码:57-65
关键词	carboxymethyl cellulose polyvinylpyrrolidone semi-interpenetrated polymer network superabsorbent hydrogel pH-responsive
ISSN号	1598-5032
通讯作者	王爱勤 aqwang@licp.cas.cn
中文摘要	Novel pH-responsive semi-interpenetrated polymer network (semi-IPN) superabsorbent hydrogels were prepared by the radical graft polymerization of carboxymethylcellulose (CMC) and partially neutralized acrylic acid (NaA) in the presence of a crosslinker, N,N'-methylene-bis-acrylamide (MBA), and linear polyvinylpyrrolidone (PVP). FTIR spectroscopy showed that NaA was grafted onto the CMC backbone and PVP combined with CMCg-PNaA network by hydrogen-bonding interaction. SEM showed that the formation of a semi-IPN structure improved the surface structure of the hydrogels. The reaction variables, including the mass ratio of acrylic acid (AA) to CMC, MBA concentration and PVP content were optimized, and the crosslinking density of the hydrogels was determined. In addition, the pH-response, swelling behavior of the hydrogel in various saline solutions and aqueous cetyltrimethylammonium bromide (CTAB) solutions were investigated. The results showed that the introduction of CMC and PVP clearly enhanced the swelling capability and rate, and improved the pH-responsive and On-Off switching swelling abilities, salt-resistance, and intriguing time-dependent swelling characteristics.
学科主题	功能高分子
收录类别	SCI
资助信息	国家自然科学基金项目(20877077)
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/362003/71]
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 Q,Wang AQ. pH-responsive carboxymethylcellulose-g-poly (sodium acrylate)/polyvinylpyrrolidone semi-IPN hydrogels with enhanced responsive and swelling properties[J]. Macromolecular Research,2011,19(1):57-65.
APA	王文波,汪琴,&王爱勤.(2011).pH-responsive carboxymethylcellulose-g-poly (sodium acrylate)/polyvinylpyrrolidone semi-IPN hydrogels with enhanced responsive and swelling properties.Macromolecular Research,19(1),57-65.
MLA	王文波,et al."pH-responsive carboxymethylcellulose-g-poly (sodium acrylate)/polyvinylpyrrolidone semi-IPN hydrogels with enhanced responsive and swelling properties".Macromolecular Research 19.1(2011):57-65.