| Synthesis and characterization of chitosan-g-poly(acrylic acid)/attapulgitesuperabsorbentcomposites | |
| Department | 环境材料与生态化学研究发展中心 |
Zhang JP(张俊平) ; Wang Q(汪琴); Wang AQ(王爱勤); 王爱勤 aqwang@licp.cas.cn
| |
| 2007 | |
| Source Publication | Carbohydrate Polymers
 |
| ISSN | 0144-8617 |
| Volume | 68Issue:2Pages:367-374 |
| Abstract | A novel chitosan-g-poly(acrylic acid)/attapulgitesuperabsorbentcomposite 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 superabsorbentcomposite 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. |
| Keyword | Superabsorbentcomposite Water Absorbency Attapulgite Chitosan |
| Subject Area | 功能高分子 |
| Funding Organization | 科技部863重大专项子课题(2005AA2Z4030);甘肃省科技攻关项目(2GS052-A52-002-07) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 功能复合材料组 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/199 |
| Collection | 环境材料与生态化学研究发展中心 |
| Corresponding Author | 王爱勤 aqwang@licp.cas.cn |
| Recommended Citation GB/T 7714 | Zhang JP,Wang Q,Wang AQ,et al. Synthesis and characterization of chitosan-g-poly(acrylic acid)/attapulgitesuperabsorbentcomposites[J]. Carbohydrate Polymers,2007,68(2):367-374. |
| APA | 张俊平,汪琴,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2007).Synthesis and characterization of chitosan-g-poly(acrylic acid)/attapulgitesuperabsorbentcomposites.Carbohydrate Polymers,68(2),367-374. |
| MLA | 张俊平,et al."Synthesis and characterization of chitosan-g-poly(acrylic acid)/attapulgitesuperabsorbentcomposites".Carbohydrate Polymers 68.2(2007):367-374. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2007682367374.pdf（620KB） | 开放获取 | License | View Application Full Text | |||
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