活的polymer网络的老化：一个斑块粒子模型
Aging of living polymer networks: a model with patchy particles
摘要：
微观流变学实验表明，蠕虫状胶束网络组成的粘弹性介质即使在微米尺度下也表现出复杂的弛豫现象。通过将具有合适介观基本图案的片状胶体模型映射到蠕虫状胶束系统，我们能够模拟其弛豫动力学，在热淬火时，跨越几十年，从微秒到几十秒。在将模型映射到真实单元和实验断裂能量之后，我们表明，松弛过程通过一系列非局部和具有能量挑战性的安排来发展。这些调整去除了作为临时能量解决方案形成的不期望的结构，用于稳定网络的物理不稳定的自由帽。我们声称，所观察到的无标度性质的停滞过程可能会复杂的实验相关的时间尺度的韦森伯格数的正确量化。
英文摘要：
Microrheology experiments show that viscoelastic media composed by wormlike micellar networks display complex relaxations lasting seconds even at the scale of micrometers. By mapping a model of patchy colloids with suitable mesoscopic elementary motifs to a system of worm-like micelles, we are able to simulate its relaxation dynamics, upon a thermal quench, spanning many decades, from microseconds up to tens of seconds. After mapping the model to real units and to experimental scission energies, we show that the relaxation process develops through a sequence of non-local and energetically challenging arrangements. These adjustments remove undesired structures formed as a temporary energetic solution for stabilizing the thermodynamically unstable free caps of the network. We claim that the observed scale-free nature of this stagnant process may complicate the correct quantification of experimentally relevant time scales as the Weissenberg number.
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