| Preparation and Swelling bahavior of chitosan-g-poly (acrylic acid)/muscovite superabsorbent composites | |
| Department | 环境材料与生态化学研究发展中心 |
Xie YT(谢云涛); Wang AQ(王爱勤) ; 王爱勤 aqwang@licp.cas.cn
| |
| 2010 | |
| Source Publication | Iranian Polymer Journal
 |
| ISSN | 1026-1265 |
| Volume | 19Issue:2Pages:131-141 |
| Abstract | 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, CaCl2, and FeCl3 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. |
| Keyword | Superabsorbent Composite Ion-exchanged Muscovite Graft Copolymerization Swelling Behaviour Water Absorbency. |
| 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 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/132 |
| 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 | Xie YT,Wang AQ,王爱勤 aqwang@licp.cas.cn. Preparation and Swelling bahavior of chitosan-g-poly (acrylic acid)/muscovite superabsorbent composites[J]. Iranian Polymer Journal,2010,19(2):131-141. |
| APA | 谢云涛,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2010).Preparation and Swelling bahavior of chitosan-g-poly (acrylic acid)/muscovite superabsorbent composites.Iranian Polymer Journal,19(2),131-141. |
| MLA | 谢云涛,et al."Preparation and Swelling bahavior of chitosan-g-poly (acrylic acid)/muscovite superabsorbent composites".Iranian Polymer Journal 19.2(2010):131-141. |
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