| 水溶液中嵌段共聚物的耗散颗粒动力学模拟 |
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| 引用本文： | 苑世领,吴锐,蔡政亭. 水溶液中嵌段共聚物的耗散颗粒动力学模拟[J]. 物理化学学报, 2004, 20(8): 811-815. DOI: 10.3866/PKU.WHXB20040806 |
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| 作者姓名： | 苑世领 吴锐 蔡政亭 |
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| 作者单位： | Institute of Theoretical Chemistry, Shandong University, Jinan 250100 |
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| 基金项目： | 国家自然科学基金(20303011，20173032)资助项目~~ |
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| 摘 要： | 用耗散颗粒动力学(dissipative particle dyanmics)模拟方法研究了Pluronic L64(PL64)和Pluronic 25R4(25R4)三嵌段共聚物水溶液中的介观相分离,模拟了聚合物聚集的动力学变化过程. 结果发现,在水溶液中,不同浓度的聚合物溶液表现出不同的介观结构,如分散相、球形胶束、双连续相(bicontinuous)等；而Pluronic L64在低浓度时更容易形成双连续相. 耗散颗粒动力学模拟可以作为实验的一个辅助,提供介观层次上的信息,对实验起到指导作用.
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| 关 键 词： | 耗散颗粒动力学模拟 介观模拟 嵌段共聚物 |
| 收稿时间： | 2003-12-01 |
| 修稿时间： | 2003-12-01 |
Dissipative Particle Dynamics Simulation on the Block Polymer in Aqueous Solution |
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| Yuan Shi-Ling Wu Rui Cai Zheng-Ting. Dissipative Particle Dynamics Simulation on the Block Polymer in Aqueous Solution[J]. Acta Physico-Chimica Sinica, 2004, 20(8): 811-815. DOI: 10.3866/PKU.WHXB20040806 |
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| Authors: | Yuan Shi-Ling Wu Rui Cai Zheng-Ting |
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| Affiliation: | Institute of Theoretical Chemistry, Shandong University, Jinan 250100 |
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| Abstract: | The mesoscopic phase separation of block polymers, Pluronic 64(PL64)and Pluronic 25R4 (25R4), was investigated by dissipative particle dynamics(DPD)simulation, and the dynamics process of different aggregates in the solution was simulated. The results showed that: different morphologies were found in solutions of polymer with different concentrations including dispersive phase, spherical micelle, bicontinuous phase and so on. One conclusion is that the DPD simulation can be considered as an adjunct for the experiments, to provide information at the mesoscopic level. |
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| Keywords: | Dissipative particles dynamics simulation Mesoscopic simulation Block polymer |
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