George Mathew, Weiss Richard G
Department of Chemistry, Georgetown University, Washington, DC 20057-1227, USA.
Acc Chem Res. 2006 Aug;39(8):489-97. doi: 10.1021/ar0500923.
This Account presents recent advances in understanding how and why dilute solutions/sols of low-molecular-mass organic gelators (LMOGs) undergo microscopic phase separation to form self-assembled fibrillar networks in molecular organogels. Concepts are illustrated structurally at the subnanometer (molecular) to several millimeter (bulk) length scales and dynamically over time scales that follow the assembly of supersaturated solutions/sols into gel phases. Examples include both structurally complicated (ALSmolecules with aromatic, linking, and steroidal groups) and simple (n-alkanes or n-alkanes along whose chains a hetero-group has been inserted) LMOGs in a wide range of organic liquids.
本综述介绍了在理解低分子量有机凝胶剂（LMOG）的稀溶液/溶胶如何以及为何发生微观相分离以在分子有机凝胶中形成自组装纤维网络方面的最新进展。在从亚纳米（分子）到几毫米（宏观）的长度尺度上以结构方式说明了相关概念，并在从过饱和溶液/溶胶组装成凝胶相的时间尺度上动态地进行了说明。示例包括结构复杂的（具有芳香族、连接基团和甾体基团的ALS分子）和简单的（正构烷烃或沿其链插入了杂基团的正构烷烃）LMOG在多种有机液体中的情况。
