Synthesis and swelling characteristics of a pH-responsive guar gum-g-poly(sodium acrylate)/medicinal stone superabsorbent composite

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 and swelling characteristics of a pH-responsive guar gum-g-poly(sodium acrylate)/medicinal stone superabsorbent composite
	Wang AQ(王爱勤); Wang WB(王文波)
刊名	Polymer Composites
	2011
卷号	32 期号:2 页码:210-218
ISSN号	0272-8397
通讯作者	王爱勤 aqwang@licp.cas.cn
中文摘要	A series of pH-responsive superabsorbent composites were synthesized by the free-radical grafting copolymerization of natural guar gum (GG), partially neutralized acrylic acid (NaA), and medicinal stone (MS) using ammonium persulfate (APS) as the initiator and N,N'-methylene-bis-acrylamide (MBA) as the crosslinker. The structure, surface morphologies, and thermal stability of the developed composites were characterized by FTIR spectra, SEM, and TGA techniques, respectively. The effects of various saline, surfactant, and dye solutions on swelling properties were investigated, and the pH-responsivity was also evaluated. Results indicated that NaA had been grafted onto GG macromolecular chains and MS participated in the polymerization reaction. The incorporation of MS obviously improved the surface structure, thermal stability, water absorption capacity, and rate. Multivalent saline, cationic surfactant, and dye showed more remarkable effect on the water absorption than did monovalent or anionic ones. The composites showed excellent responsive properties and reversible On-Off switching characteristics in various pH buffer solutions, which provided great possibility to extend the application domain of the superabsorbent composites.
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
WOS记录号	WOS:000286561700007
公开日期	2012-08-30
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/75]
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 AQ,Wang WB. Synthesis and swelling characteristics of a pH-responsive guar gum-g-poly(sodium acrylate)/medicinal stone superabsorbent composite[J]. Polymer Composites,2011,32(2):210-218.
APA	王爱勤,&王文波.(2011).Synthesis and swelling characteristics of a pH-responsive guar gum-g-poly(sodium acrylate)/medicinal stone superabsorbent composite.Polymer Composites,32(2),210-218.
MLA	王爱勤,et al."Synthesis and swelling characteristics of a pH-responsive guar gum-g-poly(sodium acrylate)/medicinal stone superabsorbent composite".Polymer Composites 32.2(2011):210-218.