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	Synthesis and characterization of chitosan-g-poly(acrylic acid)/attapulgite superabsorbent composites
	Zhang, Junping; Wang, Qin; Wang, Aiqin
刊名	Carbohydrate polymers
	2007-03-21
卷号	68期号:2页码:367-374
关键词	Superabsorbent composite Water absorbency Attapulgite Chitosan
ISSN号	0144-8617
DOI	10.1016/j.carbpol.2006.11.018
通讯作者	Wang, aiqin(aqwang@lzb.ac.cn)
英文摘要	A novel chitosan-g-poly(acrylic acid)/attapulgite superabsorbent composite with water absorbency of 159.6 g g(-1) in distilled water and 42.3 g g(-1) in 0.9 wt% nacl solution was prepared by graft polymerization with chitosan, acrylic acid and attapulgite in aqueous solution, using n,n'-methylenebisacrylamide as a crosslinker and ammonium persulfate as an initiator. factors influencing water absorbency of the superabsorbent composite were investigated, such as average molecular weight of chitosan, weight ratio of acrylic acid to chitosan, dewatering method, the amount of crosslinker and attapulgite. the result from ftir spectra showed that -oh of attapulgite, -oh, -nhco and -nh2 of chitosan participated in graft polymerization with acrylic acid. the introduced attapulgite enhanced thermal stability of the chitosan-g-poly(acrylic acid) superabsorbent and formed a loose and more porous surface. introducing a small amount of attapulgite also enhanced water absorbency of the chitosan-g-poly(acrylic acid) superabsorbent. (c) 2006 elsevier ltd. all rights reserved.
WOS关键词	WATER ABSORBENCY ; SWELLING RATE ; HYDROGELS ; CHITOSAN ; COPOLYMER ; CU(II)
WOS研究方向	Chemistry ; Polymer Science
WOS类目	Chemistry, Applied ; Chemistry, Organic ; Polymer Science
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000245168800020
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2379990
专题	中国科学院大学
通讯作者	Wang, Aiqin
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Ecomat & Green Chem, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Junping,Wang, Qin,Wang, Aiqin. Synthesis and characterization of chitosan-g-poly(acrylic acid)/attapulgite superabsorbent composites[J]. Carbohydrate polymers,2007,68(2):367-374.
APA	Zhang, Junping,Wang, Qin,&Wang, Aiqin.(2007).Synthesis and characterization of chitosan-g-poly(acrylic acid)/attapulgite superabsorbent composites.Carbohydrate polymers,68(2),367-374.
MLA	Zhang, Junping,et al."Synthesis and characterization of chitosan-g-poly(acrylic acid)/attapulgite superabsorbent composites".Carbohydrate polymers 68.2(2007):367-374.

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