Preparation and swelling properties of semi-IPN hydrogels based on chitosan-g-poly(acrylic acid) and phosphorylated polyvinyl alcohol
文献类型：期刊论文
| 作者 | Wang WB(王文波) ; Zheng YA(郑易安); Wang AQ(王爱勤)
|
| 刊名 | Journal of Applied Polymer Science
 |
| 出版日期 | 2009 |
| 卷号 | 114期号:1页码:643-652 |
| 关键词 | chitosan phosphorylated poly(vinyl alcohol) superabsorbent hydrogel semi-interpenetrated polymer network swelling |
| ISSN号 | 0021-8995 |
| 通讯作者 | 王爱勤 aqwang@licp.cas.cn |
| 中文摘要 | The phosphorylated poly(vinyl alcohol) (PPVA) samples with various substitution degrees were prepared through the esterification reaction of PVA and phosphoric acid. By using chitosan (CTS), acrylic acid (AA) and P-PVA as raw materials, ammonium persulphate (APS) as an initiator and N,N-methylenebisacrylamide as a crosslinker, the CTS-g-PAA/P-PVA semi-interpenetrated polymer network (IPN) ssuperabsorbent hydrogel was prepared in aqueous solution by the graft copolymerization of CTS and AA and followed by an interpenetrating and crosslinking of P-PVA chains. The hydrogel was characterized by Fourier transform infrared (FTIR), scanning electron microscopy (SEM), and differential scanning calorimetry (DSC) techniques, and the influence of reaction variables, such as the substitution degree and content of P-PVA on water absorbency were also investigated. FTIR and DSC results confirmed that PAA had been grafted onto CTS backbone and revealed the existence of phase separation and the formation of semi-IPN network structure. SEM observations indicate that the incorporation of P-PVA induced highly porous structure, and P-PVA was uniformly dispersed in the polymeric network. Swelling results showed that CTS-g-PAA/P-PVA semi-IPN superabsorbent hydrogel exhibited improved swelling capability (421 gg–1 in distilled water and 55 gg–1 in 0.9 wt % NaCl solution) and swelling rate compared with CTS-g-PAA/PVA hydrogel (301 gg–1 in distilled water and 47 gg–1 in 0.9 wt % NaCl solution) due to the phosphorylation of PVA. |
| 学科主题 | 功能高分子 |
| 收录类别 | SCI |
| 资助信息 | 科技部863项目(2006AA03Z0454,2006AA100215) |
| 语种 | 英语 |
| WOS记录号 | WOS:000268738500076 |
| 公开日期 | 2012-09-02 |
| 源URL | [http://210.77.64.217/handle/362003/160]  |
| 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,Zheng YA,Wang AQ. Preparation and swelling properties of semi-IPN hydrogels based on chitosan-g-poly(acrylic acid) and phosphorylated polyvinyl alcohol[J]. Journal of Applied Polymer Science,2009,114(1):643-652. |
| APA | 王文波,郑易安,&王爱勤.(2009).Preparation and swelling properties of semi-IPN hydrogels based on chitosan-g-poly(acrylic acid) and phosphorylated polyvinyl alcohol.Journal of Applied Polymer Science,114(1),643-652. |
| MLA | 王文波,et al."Preparation and swelling properties of semi-IPN hydrogels based on chitosan-g-poly(acrylic acid) and phosphorylated polyvinyl alcohol".Journal of Applied Polymer Science 114.1(2009):643-652. |
入库方式： OAI收割
来源：兰州化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。