论文标题
渗滤在稀聚合物网络中诱导的凝胶 - 凝胶相分离
Percolation induced gel-gel phase separation in a dilute polymer network
论文作者
论文摘要
宇宙大规模结构，动物羊群和活组织是由耗散过程产生的非平衡有组织的系统。尽管具有独特性，但耗散结构的实现仍然很困难。本文中，我们报告说，稀释系统中的网络形成过程是一个耗散过程，导致渗透引起凝胶 - 凝胶相分离（GGP）（GGP）在一个突出的混杂聚合物 - 水系统中。稀释系统在渗透阈值下形成单相结构，最终随着网络形成的进展而在更长的时间尺度上分为两个凝胶相。用GGP的稀水凝胶表现出意外的中尺度共连接结构，并在皮下诱导脂肪生长。 GGP和宇宙大规模结构的形成机制是类似的，就稀释的系统驱动相分离中的有吸引力的相互作用而言。这种独特的现象揭示了耗散结构的可能性，可以刺激与耗散结构相关的研究领域。
Cosmic large-scale structures, animal flocks, and living tissues are non-equilibrium organized systems created by dissipative processes. Despite the uniqueness, the realization of dissipative structures is still difficult. Herein, we report that a network formation process in a dilute system is a dissipative process, leading to percolation induced gel-gel phase separation (GGPS) in a prominent miscible polymer-water system. The dilute system, which forms a monophase structure at the percolation threshold, eventually separates into two gel phases in a longer time scale as the network formation progresses. The dilute hydrogel with GGPS exhibits an unexpected mesoscale co-continuous structure and induces adipose growth in subcutaneous. The formation mechanism of GGPS and a cosmic large-scale structure is analogous, in terms of attractive interactions in a diluted system driving phase separation. This unique phenomenon unveils the possibility of dissipative structures enabling advanced functionalities and will stimulate research fields related to dissipative structures.
