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	Preparation and swelling behaviour of chitosan-g-poly(acrylic acid)/muscovite superabsorbent composites
	Xie, Yun-Tao1,2; Wang, Ai-Qin1
刊名	Iranian polymer journal
	2010-02-01
卷号	19期号:2页码:131-141
关键词	Superabsorbent composite Ion-exchanged muscovite Graft copolymerization Swelling behaviour Water absorbency
ISSN号	1026-1265
通讯作者	Wang, ai-qin(aqwang@lzb.ac.cn)
英文摘要	A series of novel chitosan-g-poly(acrylic acid)/muscovite (cts-g-paa/mvt) granular superabsorbent composites were synthesized by free-radical graft polymerization in aqueous solution. the effects of different ion-exchanged mvt on equilibrium water absorbency, swelling rate and swelling behaviour in various cationic saline solutions and different ph solutions of superabsorbent composites were systematically investigated under the same preparation conditions. the superabsorbents doped with different ion-exchanged mvt were characterized by fourier-transform infrared spectroscopy (ftir), x-ray fluorescence spectrometry (xrf) and scanning electron microscopy (sem). ftir spectroscopy confirmed that aa has been grafted onto cts and -oh groups of mvt seem to have participated in this reaction, simultaneously. these composites show good dispersion and favourable compatibility of inorganic and organic phases observed in sem photographs. the introduction of ion-exchanged mvt into chitosan-g-poly(acrylic acid) polymeric network could improve water absorbency and swelling rate compared to those of the mvt. it is found that the swelling behaviour of these composites depends on the concentrations of nacl, cacl(2), and fecl(3) solutions; as by increasing the concentration from 0.01 to 10 mm leads to gradual decrease in the swelling rates. all prepared composite samples demonstrate similar swelling behaviour at different ph, while the equilibrium water absorbency of the samples is kept roughly constant in ph range 4-10.
WOS关键词	WATER ABSORBENCY ; POLYMER ; NANOCOMPOSITES ; COPOLYMER ; HYDROGELS ; HUMATE
WOS研究方向	Polymer Science
WOS类目	Polymer Science
语种	英语
出版者	POLYMER RESEARCH CENTER IRAN
WOS记录号	WOS:000277424400006
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2415501
专题	中国科学院大学
通讯作者	Wang, Ai-Qin
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 Sch, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Xie, Yun-Tao,Wang, Ai-Qin. Preparation and swelling behaviour of chitosan-g-poly(acrylic acid)/muscovite superabsorbent composites[J]. Iranian polymer journal,2010,19(2):131-141.
APA	Xie, Yun-Tao,&Wang, Ai-Qin.(2010).Preparation and swelling behaviour of chitosan-g-poly(acrylic acid)/muscovite superabsorbent composites.Iranian polymer journal,19(2),131-141.
MLA	Xie, Yun-Tao,et al."Preparation and swelling behaviour of chitosan-g-poly(acrylic acid)/muscovite superabsorbent composites".Iranian polymer journal 19.2(2010):131-141.

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