Effect of surfactant on porosity and swelling behaviors of guar gum-g-poly (sodium acrylate -co- styrene)/attapulgite superabsorbent hydrogels
文献类型：期刊论文
| 作者 | Wang WB(王文波) ; Wang AQ(王爱勤)
|
| 刊名 | Colloids and Surfaces B: Biointerfaces
 |
| 出版日期 | 2011 |
| 卷号 | 88期号:1页码:279-286 |
| 关键词 | Surfactant Porosity Guar gum Hydrogel Swelling behavior |
| ISSN号 | 0927-7765 |
| 通讯作者 | 王爱勤 aqwang@licp.cas.cn |
| 中文摘要 | Novel fast-swelling porous guar gum-g-poly(sodium acrylate-co-styrene)/attapulgite (GG-g-P(NaA-co-St)/APT) superabsorbent hydrogels were prepared by simultaneous free-radical graft copolymerization reaction of guar gum (GG), partially neutralized AA (NaA), styrene (St) and attapulgite (APT) using N,N -methylenebisacrylamide (MBA) as a crosslinker and ammonium persulfate (APS) as an initiator in aqueous solution and the surfactant self-assembling templating pore-forming technique. Fourier transform infrared (FTIR) spectroscopy confirmed that the surfactant could be removed from the final hydrogel product by methanol/water (8:1, v/v) washing process and the surfactant only act as micelle template to form pores. The effect of surfactant type on the porous microstructure of the hydrogel was assessed by field emission scanning electron microscope (FESEM). It was shown that incorporation of proper amount of anionic surfactant sodium n-dodecyl sulfate (SDS) in the gelling process of the hydrogel can obviously enhance the swelling capacity and initial swelling rate. The salt-sensitivity of the SDS-added hydrogel in distilled water and 15 mmol/L NaCl, CaCl2 solution or 15 mmol/L NaCl and CaCl2 solution was investigated, and it was found that the swelling-deswelling capability is quite reversible. A similar reproducible on-off switching behavior was observed in the 1 mmol/L solution of phosphate buffer at pH 2.1 and 7.4. |
| 学科主题 | 功能高分子 |
| 收录类别 | SCI |
| 资助信息 | 国家自然科学基金项目(20877077) |
| 语种 | 英语 |
| 公开日期 | 2012-08-30 |
| 源URL | [http://210.77.64.217/handle/362003/87]  |
| 专题 | 兰州化学物理研究所_环境材料与生态化学研究发展中心 |
| 推荐引用方式 GB/T 7714 | Wang WB,Wang AQ. Effect of surfactant on porosity and swelling behaviors of guar gum-g-poly (sodium acrylate -co- styrene)/attapulgite superabsorbent hydrogels[J]. Colloids and Surfaces B: Biointerfaces,2011,88(1):279-286. |
| APA | 王文波,&王爱勤.(2011).Effect of surfactant on porosity and swelling behaviors of guar gum-g-poly (sodium acrylate -co- styrene)/attapulgite superabsorbent hydrogels.Colloids and Surfaces B: Biointerfaces,88(1),279-286. |
| MLA | 王文波,et al."Effect of surfactant on porosity and swelling behaviors of guar gum-g-poly (sodium acrylate -co- styrene)/attapulgite superabsorbent hydrogels".Colloids and Surfaces B: Biointerfaces 88.1(2011):279-286. |
入库方式： OAI收割
来源：兰州化学物理研究所
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