Ion Solvation in Polymer Blends and Block Copolymer Melts: Effects of Chain Length and Connectivity on the Reorganization of Dipoles
文献类型：期刊论文
| 作者 | Nakamura, Issei |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY B
 |
| 出版日期 | 2014-05-29 |
| 卷号 | 118期号:21页码:5787-5796 |
| ISSN号 | 1520-6106 |
| DOI | 10.1021/jp502987a |
| 英文摘要 | We studied the thermodynamic properties of ion solvation in polymer blends and block copolymer melts and developed a dipolar self-consistent field theory for polymer mixtures. Our theory accounts for the chain connectivity of polymerized monomers, the compressibility of the liquid mixtures under electrostriction, the permanent and induced dipole moments of monomers, and the resultant dielectric contrast among species. In our coarse-grained model, dipoles are attached to the monomers and allowed to rotate freely in response to electrostatic fields. We demonstrate that a strong electrostatic field near an ion reorganizes dipolar monomers, resulting in nonmonotonic changes in the volume fraction profile and the dielectric function of the polymers with respect to those of simple liquid mixtures. For the parameter sets used, the spatial variations near an ion can be in the range of 1 nm or larger, producing significant differences in the solvation energy among simple liquid mixtures, polymer blends, and block copolymers. The solvation energy of an ion depends substantially on the chain length in block copolymers; thus, our theory predicts the preferential solvation of ions arising from differences in chain length. |
| 语种 | 英语 |
| WOS记录号 | WOS:000336771100018 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/52265]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Nakamura, Issei |
| 作者单位 | Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Jilin, Peoples R China |
| 推荐引用方式 GB/T 7714 | Nakamura, Issei. Ion Solvation in Polymer Blends and Block Copolymer Melts: Effects of Chain Length and Connectivity on the Reorganization of Dipoles[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2014,118(21):5787-5796. |
| APA | Nakamura, Issei.(2014).Ion Solvation in Polymer Blends and Block Copolymer Melts: Effects of Chain Length and Connectivity on the Reorganization of Dipoles.JOURNAL OF PHYSICAL CHEMISTRY B,118(21),5787-5796. |
| MLA | Nakamura, Issei."Ion Solvation in Polymer Blends and Block Copolymer Melts: Effects of Chain Length and Connectivity on the Reorganization of Dipoles".JOURNAL OF PHYSICAL CHEMISTRY B 118.21(2014):5787-5796. |
入库方式： OAI收割
来源：化学研究所
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