A pH-Sensitive Biopolymer-Based Superabsorbent Nanocomposite from Sodium Alginate and Attapulgite: Synthesis, Characterization, and Swelling Behaviors

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

	A pH-Sensitive Biopolymer-Based Superabsorbent Nanocomposite from Sodium Alginate and Attapulgite: Synthesis, Characterization, and Swelling Behaviors
	Yang HX(杨会霞)1,2; Wang WB(王文波)1,3 ; Wang AQ(王爱勤)1
刊名	Journal of Dispersion Science and Technology
	2012
卷号	33 期号:8 页码:1154-1162
关键词	Attapulgite pH-sensitive polyvinylperrodone sodium alginate superabsorbent nanocomposite swelling
ISSN号	0193-2691
通讯作者	王爱勤
英文摘要	Graft copolymerization reaction among sodium alginate (NaAlg), sodium acrylate (NaA), and nanoscale attapulgite (APT) was performed to fabricate a novel pH-sensitive NaAlg-g-PNaA/APT superabsorbent nanocomposite. FTIR spectra proved NaA monomers were grafted onto NaAlg backbone and APT participated in polymerization. FESEM, TEM, and TGA analyses revealed the better dispersion of APT fibrils in the matrix and the improved thermal stability. The swelling capacity and rate of the superabsorbent was clearly enhanced after introducing APT. The external salts and surfactants showed greater influence on the swelling behaviors. The nanocomposite exhibited reversible On-Off pH-sensitivity between pHs 2.0 and 7.4, and the intriguing pH-triggered deswelling behavior in various polyvinylperrodone (PVP) solutions was observed.
学科主题	环境材料与生态化学
收录类别	SCI
资助信息	the National Natural Science Foundation of China (No. 20877077);the Science and Technology Support Project of Jiangsu Provincial Scence & Technology Department (No. BY2010012);the Open Fund of the Key Laboratory of Chemistry of Northwestern Plant Resources, Chinese Academy of Sciences (No. CNPR2010kfkt01)
语种	英语
WOS记录号	WOS:000307059800010
公开日期	2013-03-24
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/2549]
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
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Xuyi Attapulgite Appl Technol, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing, Peoples R China 3.Chinese Acad Sci, Key Lab Chem NW Plant Resources, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Yang HX,Wang WB,Wang AQ. A pH-Sensitive Biopolymer-Based Superabsorbent Nanocomposite from Sodium Alginate and Attapulgite: Synthesis, Characterization, and Swelling Behaviors[J]. Journal of Dispersion Science and Technology,2012,33(8):1154-1162.
APA	Yang HX,Wang WB,&Wang AQ.(2012).A pH-Sensitive Biopolymer-Based Superabsorbent Nanocomposite from Sodium Alginate and Attapulgite: Synthesis, Characterization, and Swelling Behaviors.Journal of Dispersion Science and Technology,33(8),1154-1162.
MLA	Yang HX,et al."A pH-Sensitive Biopolymer-Based Superabsorbent Nanocomposite from Sodium Alginate and Attapulgite: Synthesis, Characterization, and Swelling Behaviors".Journal of Dispersion Science and Technology 33.8(2012):1154-1162.