Influence of compositional gradient on the phase behavior of ternary symmetric homopolymer-copolymer blends: A Monte Carlo study
文献类型：期刊论文
| 作者 | Sun, Dachuan; Guo, Hongxia |
| 刊名 | POLYMER
 |
| 出版日期 | 2011-11-28 |
| 卷号 | 52期号:25页码:5922-5932 |
| 关键词 | Gradient Copolymers Phase Behavior Monte Carlo Simulation |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2011.10.039 |
| 英文摘要 | The formation of bicontinuous microemulsions (BUEs) in ternary symmetric blends including two immiscible homopolymers A and B as well as a linear gradient copolymer G is verified by Monte Carlo simulations. Four phase diagrams as a function of segregation strength and blend composition are constructed to show the effects of compositional gradient. Compared with the blends of A/B/diblock copolymers, the BUE phase occupies a broader region in the phase diagram of the A/B/G blends and is replaced by the three-phase coexistence phases of A + B + L or A + B + D at a much lower chain length ratio. Moreover, the lamellar phase is formed at a higher value of segregation strength, has a shorter periodic length and lower orientational order, and spans a narrower range of the phase diagram. A "counteraction effect" is proposed to explain those discrepancies caused by gradient copolymers. (C) 2011 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000297539000029 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/44249]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Guo, Hongxia |
| 作者单位 | Chinese Acad Sci, Beijing Natl Lab Mol Sci, Joint Lab Polymer Sci & Mat, State Key Lab Polymer Phys & Chem,Inst Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Dachuan,Guo, Hongxia. Influence of compositional gradient on the phase behavior of ternary symmetric homopolymer-copolymer blends: A Monte Carlo study[J]. POLYMER,2011,52(25):5922-5932. |
| APA | Sun, Dachuan,&Guo, Hongxia.(2011).Influence of compositional gradient on the phase behavior of ternary symmetric homopolymer-copolymer blends: A Monte Carlo study.POLYMER,52(25),5922-5932. |
| MLA | Sun, Dachuan,et al."Influence of compositional gradient on the phase behavior of ternary symmetric homopolymer-copolymer blends: A Monte Carlo study".POLYMER 52.25(2011):5922-5932. |
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来源：化学研究所
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