| pH-responsive carboxymethylcellulose-g-poly (sodium acrylate)/polyvinylpyrrolidone semi-IPN hydrogels with enhanced responsive and swelling properties | |
| Department | 环境材料与生态化学研究发展中心 |
Wang WB(王文波) ; Wang Q(汪琴); Wang AQ(王爱勤); 王爱勤 aqwang@licp.cas.cn
| |
| 2011 | |
| Source Publication | Macromolecular Research
 |
| ISSN | 1598-5032 |
| Volume | 19Issue:1Pages:57-65 |
| Abstract | Novel pH-responsive semi-interpenetrated polymer network (semi-IPN) superabsorbent hydrogels were prepared by the radical graft polymerization of carboxymethylcellulose (CMC) and partially neutralized acrylic acid (NaA) in the presence of a crosslinker, N,N'-methylene-bis-acrylamide (MBA), and linear polyvinylpyrrolidone (PVP). FTIR spectroscopy showed that NaA was grafted onto the CMC backbone and PVP combined with CMCg-PNaA network by hydrogen-bonding interaction. SEM showed that the formation of a semi-IPN structure improved the surface structure of the hydrogels. The reaction variables, including the mass ratio of acrylic acid (AA) to CMC, MBA concentration and PVP content were optimized, and the crosslinking density of the hydrogels was determined. In addition, the pH-response, swelling behavior of the hydrogel in various saline solutions and aqueous cetyltrimethylammonium bromide (CTAB) solutions were investigated. The results showed that the introduction of CMC and PVP clearly enhanced the swelling capability and rate, and improved the pH-responsive and On-Off switching swelling abilities, salt-resistance, and intriguing time-dependent swelling characteristics. |
| Keyword | Carboxymethyl Cellulose Polyvinylpyrrolidone Semi-interpenetrated Polymer Network Superabsorbent Hydrogel Ph-responsive |
| Subject Area | 功能高分子 |
| Funding Organization | 国家自然科学基金项目(20877077) |
| 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/362003/71 |
| 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 | Wang WB,Wang Q,Wang AQ,et al. pH-responsive carboxymethylcellulose-g-poly (sodium acrylate)/polyvinylpyrrolidone semi-IPN hydrogels with enhanced responsive and swelling properties[J]. Macromolecular Research,2011,19(1):57-65. |
| APA | 王文波,汪琴,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2011).pH-responsive carboxymethylcellulose-g-poly (sodium acrylate)/polyvinylpyrrolidone semi-IPN hydrogels with enhanced responsive and swelling properties.Macromolecular Research,19(1),57-65. |
| MLA | 王文波,et al."pH-responsive carboxymethylcellulose-g-poly (sodium acrylate)/polyvinylpyrrolidone semi-IPN hydrogels with enhanced responsive and swelling properties".Macromolecular Research 19.1(2011):57-65. |
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| 20111915765.pdf（1395KB） | 开放获取 | License | View Application Full Text | |||
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