| Synthesis and swelling characteristics of a pH-responsive guar gum-g-poly(sodium acrylate)/medicinal stone superabsorbent composite | |
| Department | 环境材料与生态化学研究发展中心 |
Zhai NH(翟乃华); Wang WB(王文波) ; Wang AQ(王爱勤); 王爱勤 aqwang@licp.cas.cn
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| 2011 | |
| Source Publication | Polymer Composites
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| ISSN | 0272-8397 |
| Volume | 32Issue:2Pages:210-218 |
| Abstract | A series of pH-responsive superabsorbent composites were synthesized by the free-radical grafting copolymerization of natural guar gum (GG), partially neutralized acrylic acid (NaA), and medicinal stone (MS) using ammonium persulfate (APS) as the initiator and N,N'-methylene-bis-acrylamide (MBA) as the crosslinker. The structure, surface morphologies, and thermal stability of the developed composites were characterized by FTIR spectra, SEM, and TGA techniques, respectively. The effects of various saline, surfactant, and dye solutions on swelling properties were investigated, and the pH-responsivity was also evaluated. Results indicated that NaA had been grafted onto GG macromolecular chains and MS participated in the polymerization reaction. The incorporation of MS obviously improved the surface structure, thermal stability, water absorption capacity, and rate. Multivalent saline, cationic surfactant, and dye showed more remarkable effect on the water absorption than did monovalent or anionic ones. The composites showed excellent responsive properties and reversible On-Off switching characteristics in various pH buffer solutions, which provided great possibility to extend the application domain of the superabsorbent composites. |
| 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/362003/75 |
| 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 | Zhai NH,Wang WB,Wang AQ,et al. Synthesis and swelling characteristics of a pH-responsive guar gum-g-poly(sodium acrylate)/medicinal stone superabsorbent composite[J]. Polymer Composites,2011,32(2):210-218. |
| APA | 翟乃华,王文波,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2011).Synthesis and swelling characteristics of a pH-responsive guar gum-g-poly(sodium acrylate)/medicinal stone superabsorbent composite.Polymer Composites,32(2),210-218. |
| MLA | 翟乃华,et al."Synthesis and swelling characteristics of a pH-responsive guar gum-g-poly(sodium acrylate)/medicinal stone superabsorbent composite".Polymer Composites 32.2(2011):210-218. |
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| 2011322210218.pdf（1752KB） | 开放获取 | License | View Application Full Text | |||
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