Agosta Lorenzo, Metere Alfredo, Oleynikov Peter, Dzugutov Mikhail
Department of Chemistry, Ångström Laboratoriet, Uppsala Universitet, 751 21 Uppsala, Sweden.
Lawrence Livermore National Laboratory, Physical and Life Science Directorate, Physics Division, Livermore, California 94550, USA.
J Chem Phys. 2020 May 21;152(19):191101. doi: 10.1063/5.0006096.
Triply periodic continuous morphologies (networks) arising as a result of the microphase separation in block copolymer melts have so far never been observed self-assembled in systems of particles with spherically symmetric interaction. We report a molecular dynamics simulation where two simple one-component liquids form upon cooling an equilibrium network with the Fddd space group symmetry. This complexity reduction in the liquid network formation in terms of the particle geometry and the number of components evidences the generic nature of this class of phase transition, suggesting opportunities for producing these structures in a variety of new systems.
由于嵌段共聚物熔体中的微相分离而产生的三重周期连续形态（网络），迄今为止从未在具有球对称相互作用的粒子系统中自组装观察到。我们报告了一个分子动力学模拟，其中两种简单的单组分液体在冷却时形成具有Fddd空间群对称性的平衡网络。在粒子几何形状和组分数量方面，液体网络形成过程中的这种复杂性降低证明了这类相变的普遍性，这表明在各种新系统中产生这些结构具有可能性。
