Knowledge Management System Of Institute of Chemistry，CAS
| Overshooting Effect of Poly(Dimethylaminoethyl Methacrylate) Hydrogels | |
| Li, Cancan1; Xu, Ling1,2; Zhai, Maolin1; Peng, Jing1; Li, Jiuqiang1 | |
| 2011-05-15 | |
| Source Publication | JOURNAL OF APPLIED POLYMER SCIENCE
 |
| ISSN | 0021-8995 |
| Volume | 120Issue:4Pages:2027-2033 |
| Abstract | An overshooting effect was observed during the swelling procedure of poly(dimethylaminoethyl methacrylate) (PDMAEMA) gel for the first time. The effects of the temperature, ionic strength, and pH on the overshooting effect of the PDMAEMA gel were investigated. We found that the overshooting effect of the gel could not be eliminated by changing the temperature; however, the overshooting effect was indiscernible in high-concentration NaCl solutions (> 0.2 mol/L) and basic (pH 11.9) and acidic solutions (pH = 2.1). The overshooting effect of the PDMAEMA gel was attributed to the dynamic conformational changes of the side chains of dimethylaminoethyl methacrylate (DMAEMA) units during the swelling of the gels. In the presence of NaCl or NaOH, the stretching of the macromolecular chains of the gels was disrupted. While in acidic solution, the protonation of tertiary amino groups in the DMAEMA units made the side chains of the DMAEMA units change from the cyclic conformation to the stretched one; this was analyzed with the aid of Fourier transform infrared spectroscopy. (c) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 120: 2027-2033, 2011 |
| Keyword | Hydrogels Kinetics (Polym.) Swelling |
| DOI | 10.1002/app.33328 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000288337400019 |
| Publisher | WILEY-BLACKWELL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.iccas.ac.cn/handle/121111/71720 |
| Collection | 中国科学院化学研究所 |
| Corresponding Author | Zhai, Maolin |
| Affiliation | 1.Peking Univ, Beijing Natl Lab Mol Sci, Dept Appl Chem, Coll Chem & Mol Engn, Beijing 100871, Peoples R China 2.Peking Univ, Dept Energy & Resources Engn, Coll Engn, Beijing 100871, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Cancan,Xu, Ling,Zhai, Maolin,et al. Overshooting Effect of Poly(Dimethylaminoethyl Methacrylate) Hydrogels[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2011,120(4):2027-2033. |
| APA | Li, Cancan,Xu, Ling,Zhai, Maolin,Peng, Jing,&Li, Jiuqiang.(2011).Overshooting Effect of Poly(Dimethylaminoethyl Methacrylate) Hydrogels.JOURNAL OF APPLIED POLYMER SCIENCE,120(4),2027-2033. |
| MLA | Li, Cancan,et al."Overshooting Effect of Poly(Dimethylaminoethyl Methacrylate) Hydrogels".JOURNAL OF APPLIED POLYMER SCIENCE 120.4(2011):2027-2033. |
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