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Simulation Study of Process-Controlled Supramolecular Block Copolymer Phase Separation with Reversible Reaction Algorithm

机译:可逆反应算法的过程控制超分子嵌段共聚物相分离模拟研究

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摘要

A supramolecular diblock copolymer formed by reversible bonds between the two blocks shows a rich microphase separation behavior and has great application potential in stimuli-responsive materials. We propose a novel method to describe supramolecular reactions in dissipative particle dynamics, which includes a reversible reaction to accurately reproduce the strength, saturation, and dynamic properties of the reversible bonds in the simulations. The thermodynamic properties and dynamic processes of the supramolecular diblock copolymer melts in both equilibrium and non-equilibrium states were studied using this method. The simulation results show that the method can faithfully characterize phase behaviors and dynamic properties of supramolecular diblock copolymer melts, especially in a non-equilibrium state, which provides a novel tool to unveil self-assembly mechanism and describe the properties of supramolecular block copolymers.
机译:由两个嵌段之间的可逆键形成的超分子二嵌段共聚物显示出丰富的微相分离行为,并且在刺激响应材料中具有巨大的应用潜力。我们提出了一种描述耗散粒子动力学中超分子反应的新方法,该方法包括可逆反应,以在模拟中准确地再现可逆键的强度,饱和度和动力学性质。用这种方法研究了超分子二嵌段共聚物熔体在平衡和非平衡状态下的热力学性质和动力学过程。仿真结果表明,该方法能够忠实地表征超分子二嵌段共聚物熔体的相行为和动力学性质,特别是在非平衡状态下,为揭示自组装机理和描述超分子嵌段共聚物的性质提供了一种新颖的工具。

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