Swelling behavior of amphiphilic gels based on hydrophobically modified dimethylaminoethyl methacrylate
文献类型：期刊论文
| 作者 | Li, Cancan1; Xu, Ling1,2; Zhai, Maolin1; Peng, Jing1; Yang, Chao2; Li, Jiuqiang1; Wei, Genshuan1 |
| 刊名 | POLYMER
 |
| 出版日期 | 2009-09-23 |
| 卷号 | 50期号:20页码:4888-4894 |
| 关键词 | Amphiphilic Gels Temperature-stimuli Responsive Anti Polyelectrolyte Effect |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2009.08.018 |
| 英文摘要 | The amphiphilic gels based on hydrophobically modified dimethylaminoethyl methacrylate with different 1-bromoalkanes (1-CnH2n+1Br, n = 2, 4, 6, 8, 12) were synthesized by radiation-induced polymerization and crosslinking. The length of alkyl side chains had significant influence on the swelling behavior of the resulting gels. The swelling degree of the gels decreased with the increase of side chain length, and the gel hardly swelled when n = 12. The effect of temperature and ionic strength on the swelling behavior of the resulting gels revealed that (1) the gels with longer side chains (n >= 8) had upper critical solution temperature, while other gels were not thermo-sensitive. (2) Anti polyelectrolyte effect was observed when immersing the gels (n >= 8) in NaCl solutions in certain concentration range. The dramatic difference in swelling behavior was attributed to the different gel structures. The gels with short side chains (n <= 6) had cellular structure of normal polyelectrolyte gels. The gels (n >= 8) had an aggregation gel structure caused by the hydrophobic interaction among alkyl groups and the formation of ion-cluster between tetra-alkyl ammonium cation and Br-, which had been analyzed with the aid of SEM, Br--selective electrode and fluorescence molecular probe. (C) 2009 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000272959300018 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/67417]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhai, Maolin |
| 作者单位 | 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 |
| 推荐引用方式 GB/T 7714 | Li, Cancan,Xu, Ling,Zhai, Maolin,et al. Swelling behavior of amphiphilic gels based on hydrophobically modified dimethylaminoethyl methacrylate[J]. POLYMER,2009,50(20):4888-4894. |
| APA | Li, Cancan.,Xu, Ling.,Zhai, Maolin.,Peng, Jing.,Yang, Chao.,...&Wei, Genshuan.(2009).Swelling behavior of amphiphilic gels based on hydrophobically modified dimethylaminoethyl methacrylate.POLYMER,50(20),4888-4894. |
| MLA | Li, Cancan,et al."Swelling behavior of amphiphilic gels based on hydrophobically modified dimethylaminoethyl methacrylate".POLYMER 50.20(2009):4888-4894. |
入库方式： OAI收割
来源：化学研究所
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