Ajay Mallia V, Weiss Richard G
Department of Chemistry, Georgetown University, Washington DC 20057-1227, USA.
Soft Matter. 2016 Apr 20;12(16):3665-76. doi: 10.1039/c6sm00377j.
This review focuses on correlations between the thixotropic and structural properties of molecular gels having crystalline fibrillar networks (SAFINs). Formation of thixotropic molecular gels and their recovery after the application of destructive strain depends on the strength and type of intermolecular interactions in the SAFINs of the gelator molecules. Here, we limit our discussion to gelator molecules with simple structures in order to dissect more easily the important contributors to the thixotropic behaviors. Possible mechanisms to explain the thixotropic phenomena, involving the transformation of the SAFINs into unattached objects, and their reassembly into 3-dimensional networks, are advanced. The data are analyzed to provide insights into the rational design of thixotropic molecular gelators.
本综述聚焦于具有晶体纤维网络(SAFINs)的分子凝胶的触变性与结构性质之间的相关性。触变性分子凝胶的形成及其在施加破坏应变后的恢复取决于凝胶剂分子SAFINs中分子间相互作用的强度和类型。在此,我们将讨论局限于结构简单的凝胶剂分子,以便更轻松地剖析触变行为的重要影响因素。我们提出了可能的机制来解释触变现象,其中涉及SAFINs转变为未附着的物体,以及它们重新组装成三维网络。对数据进行了分析,以深入了解触变性分子凝胶剂的合理设计。