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分子动力学模拟技术目前已经成为了研究表面活性剂有序聚集体的不可或缺的工具之一。近几年来,粗粒化模拟方法克服了传统的介观模拟和精细力场模拟的缺点,既能够重现自组装体系的热力学或者结构方面的信息,又极大地拓展了模拟体系所能达到的空间和时间尺度,逐渐成为了计算领域的一个热点。本文综述了近几年来表面活性剂粗粒化分子动力学模拟的最新发展状况,分别就不同粗粒化模型的建模策略、作用势能表达、参数拟合和模型评价等问题作了详细的介绍,并通过实例说明了粗粒化力场对表面活性剂体系的适用性。在此基础上,指出了发展粗粒化力场过程中所面临的一些关键性问题,这对于表面活性剂溶液行为的粗粒化模拟具有重要的意义。
Molecular dynamics simulation techniques have now become an indispensable tool for the study of ordered aggregates of surfactants. In recent years, the coarse grained simulation method overcomes the shortcomings of the traditional mesoscopic simulation and fine force field simulation, which not only can reproduce the thermodynamic or structural information of the self-assembly system, but also greatly expand the simulation system can reach Space and time scales have gradually become a hot spot in computing. This review summarizes the recent developments of the surfactant-grained molecular dynamics simulations in recent years and gives a detailed introduction to the modeling strategies, potential energy expression, parameter fitting and model evaluation of different coarse-grained models , And illustrates the applicability of the coarse grained force field to the surfactant system by an example. On this basis, some key problems in the development of coarse grained force field are pointed out, which is of great significance for the coarse grained simulation of surfactant solution behavior.