| Preparation and swelling properties of semi-IPN hydrogels based on chitosan-g-poly(acrylic acid) and phosphorylated polyvinyl alcohol | |
| Department | 环境材料与生态化学研究发展中心 |
Liu JH(刘江华); Zheng YA(郑易安) ; Wang WB(王文波); Wang AQ(王爱勤); 王爱勤 aqwang@licp.cas.cn
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| 2009 | |
| Source Publication | Journal of Applied Polymer Science
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| ISSN | 0021-8995 |
| Volume | 114Issue:1Pages:643-652 |
| Abstract | 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. |
| Keyword | Chitosan Phosphorylated Poly(Vinyl Alcohol) Superabsorbent Hydrogel Semi-interpenetrated Polymer Network 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 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/160 |
| 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,Zheng YA,Wang WB,et al. 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 | 刘江华,郑易安,王文波,王爱勤,&王爱勤 aqwang@licp.cas.cn.(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 | 刘江华,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. |
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