Effects of polar group saturation on physical gelation of Amphiphilic polymer solutions
文献类型：期刊论文
| 作者 | Li, Yunqi; Shi, Tongfei; An, Liffia; Lee, Jooyoung; Wang, Xiaoyong; Huang, Qingrong |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY B
 |
| 出版日期 | 2007-10-25 |
| 卷号 | 111期号:42页码:12081-12087 |
| ISSN号 | 1520-6106 |
| DOI | 10.1021/jp072930b |
| 英文摘要 | Monte Carlo simulation on the basis of the comblike coarse grained nonpolar/polar (NP) model has been carried out to study the polar group saturation effect on physical gelation of amphiphilic polymer solutions. The effects of polar group saturation due to hydrogen bonding or ion bridging on the sol-gel phase diagram, microstructure of aggregates, and chain conformation of amphiphilic polymer solutions under four different solvent conditions to either the nonpolar backbone or the polar side chain in amphiphilic polymer chains have been investigated. It is found that an increase of polar group saturation results in a monotonically decreased critical concentration of gelation point, which can be qualitatively supported by the dynamic theological measurements on pectin aqueous solutions. Furthermore, various solvent conditions to either the backbone or the side chain have significant impact on both chain conformation and microstructure of aggregates. When the solvent is repulsive to the nonpolar backbone but attractive to the polar side chain, the polymer chains are collapsed, and the gelation follows the mechanism of colloidal packing; at the other solvent conditions, the gelation follows the mechanism of random aggregation. |
| 语种 | 英语 |
| WOS记录号 | WOS:000250260500008 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/61519]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | An, Liffia |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Rutgers State Univ, Dept Food Sci, New Brunswick, NJ 08901 USA |
| 推荐引用方式 GB/T 7714 | Li, Yunqi,Shi, Tongfei,An, Liffia,et al. Effects of polar group saturation on physical gelation of Amphiphilic polymer solutions[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2007,111(42):12081-12087. |
| APA | Li, Yunqi,Shi, Tongfei,An, Liffia,Lee, Jooyoung,Wang, Xiaoyong,&Huang, Qingrong.(2007).Effects of polar group saturation on physical gelation of Amphiphilic polymer solutions.JOURNAL OF PHYSICAL CHEMISTRY B,111(42),12081-12087. |
| MLA | Li, Yunqi,et al."Effects of polar group saturation on physical gelation of Amphiphilic polymer solutions".JOURNAL OF PHYSICAL CHEMISTRY B 111.42(2007):12081-12087. |
入库方式： OAI收割
来源：化学研究所
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