| Preparation, characterization and properties of superabsorbent nanocomposites based on natural guar gum and modified rectorite | |
| Department | 环境材料与生态化学研究发展中心 |
Wang WB(王文波) ; Wang AQ(王爱勤); 王爱勤 aqwang@licp.cas.cn
| |
| 2009 | |
| Source Publication | Carbohydrate Polymers
 |
| ISSN | 0144-8617 |
| Volume | 77Issue:4Pages:891-897 |
| Abstract | Novel guar gum-g-poly(sodium acrylate)/rectorite (GG-g-PNaA/REC) superabsorbent nanocomposites were prepared in aqueous solution using guar gum (GG), partially neutralized acrylic acid (NaA), acidified rectorite (H+-REC) and organified rectorite (CTA+-REC) by cetyltrimethylammonium bromide (CTAB) as raw materials, ammonium persulfate (APS) as initiator and N,N0-methylenebisacrylamide (MBA) as crosslinker. FTIR spectra confirmed that NaA had been grafted onto GG chains and the AOH groups of REC participated in polymerization reaction. Exfoliated nanocomposite was obtained for H+-REC and intercalated structure was formed for CTA+-REC as shown by XRD results. SEM observations show REC has been uniformly dispersed in polymeric matrix. Effects of HCl concentration, organification degree of CTA+-REC and content of REC on swelling capabilities were investigated and the swelling kinetics of nanocomposites was evaluated. Results indicate that modifying REC by acidification and organification can improve swelling properties of the resultant nanocomposites, and GG-g-PNaA/CTA+-REC exhibited higher swelling capability and swelling rate contrast to GG-g-PNaA/H+-REC. |
| Keyword | Superabsorbent Nanocomposites Guar Gum Rectorite Exfoliation Intercalation Swelling |
| Subject Area | 功能高分子 |
| Funding Organization | 科技部863项目(2006AA03Z0454,2006AA100215) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 功能复合材料组 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/156 |
| 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 | Wang WB,Wang AQ,王爱勤 aqwang@licp.cas.cn. Preparation, characterization and properties of superabsorbent nanocomposites based on natural guar gum and modified rectorite[J]. Carbohydrate Polymers,2009,77(4):891-897. |
| APA | 王文波,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2009).Preparation, characterization and properties of superabsorbent nanocomposites based on natural guar gum and modified rectorite.Carbohydrate Polymers,77(4),891-897. |
| MLA | 王文波,et al."Preparation, characterization and properties of superabsorbent nanocomposites based on natural guar gum and modified rectorite".Carbohydrate Polymers 77.4(2009):891-897. |
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| 2009774891897.pdf（562KB） | 开放获取 | License | View Application Full Text | |||
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