Preparation and swelling behaviour of chitosan-g-poly(acrylic acid)/muscovite superabsorbent composites
文献类型：期刊论文
| 作者 | Xie, Yun-Tao1,2; Wang, Ai-Qin1 |
| 刊名 | Iranian polymer journal
 |
| 出版日期 | 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 |
| WOS记录号 | WOS:000277424400006 |
| 出版者 | POLYMER RESEARCH CENTER IRAN |
| URI标识 | http://www.irgrid.ac.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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来源：中国科学院大学
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