| Synthesis, characterization and swelling behaviors of chitosan-g-poly(acrylic acid)/ poly(vinyl alcohol) semi-IPN superabsorbent hydrogels | |
| Department | 环境材料与生态化学研究发展中心 |
Liu JH(刘江华); Wang WB(王文波) ; Wang AQ(王爱勤); 王爱勤 aqwang@licp.cas.cn
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| 2011 | |
| Source Publication | Polymers for Advanced Technologies
 |
| ISSN | 1042-7147 |
| Volume | 22Issue:5Pages:627-634 |
| Abstract | A series of granulated semi-interpenetrating polymer network (semi-IPN) superabsorbent hydrogels composed of chitosan-g-poly(acrylic acid) (CTS-g-PAA) and poly(vinyl alcohol) (PVA) were prepared by solution polymerization using ammonium persulfate (APS) as an initiator and N,N(-methylenebisacrylamide (MBA) as a crosslinker. The effects of reaction conditions such as the concentration of MBA, the weight ratio of AA to CTS, and the content of PVA on water absorbency were investigated. Infrared (IR) spectra and differential scanning calorimetry (DSC) analyses confirmed that AA had been grafted onto CTS backbone, and PVA semi-interpenetrating into CTS-g-PAA networks. SEM analyses indicated that CTS-g-PAA/PVA has improved porous surface and PVA was uniformly dispersed in CTS-g-PAA network. The semi-IPN hydrogel containing 10 wt% PVA shows the highest water absorbency of 353 and 53 g g-1 in distilled water and 0.9 wt% NaCl solution, respectively. Swelling behaviors revealed that the introduction of PVA could improve the swelling rate and enhance the pH stability of the superabsorbent hydrogel. |
| Keyword | Superabsorbent Semi-ipn Chitosan Poly(Vinyl Alcohol) 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 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/86 |
| 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 | Liu JH,Wang WB,Wang AQ,et al. Synthesis, characterization and swelling behaviors of chitosan-g-poly(acrylic acid)/ poly(vinyl alcohol) semi-IPN superabsorbent hydrogels[J]. Polymers for Advanced Technologies,2011,22(5):627-634. |
| APA | 刘江华,王文波,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2011).Synthesis, characterization and swelling behaviors of chitosan-g-poly(acrylic acid)/ poly(vinyl alcohol) semi-IPN superabsorbent hydrogels.Polymers for Advanced Technologies,22(5),627-634. |
| MLA | 刘江华,et al."Synthesis, characterization and swelling behaviors of chitosan-g-poly(acrylic acid)/ poly(vinyl alcohol) semi-IPN superabsorbent hydrogels".Polymers for Advanced Technologies 22.5(2011):627-634. |
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| 2011225627634.pdf（471KB） | 开放获取 | License | View Application Full Text | |||
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