Discotic liquid crystals of cucurbit[7]uril (CB[7])-functionalised Laponite clays
Discotic liquid crystals of cucurbit[7]uril (CB[7])-functionalised Laponite clays
复制标题
DOI：
10.1080/00268976.2018.1508778
复制
发表时间：
2018-08
影响因子：
1.7
通讯作者：
P. Xu;Y. Lan;Li-Jun Dai;T. O’Neill;I. Stoev;Tianyang Cao;E. Eiser
中科院分区：
文献类型：
--
作者：
P. Xu;Y. Lan;Li-Jun Dai;T. O’Neill;I. Stoev;Tianyang Cao;E. Eiser
摘要本文证明，在桶状小分子葫芦b[7]存在下，拉波石粘土颗粒发生相变，成为具有片层结构的双折射凝胶和流体，拉波石贫水溶液。我们采用各种表征方法和偏振光显微镜来研究这种转变以及系统的结构和光学性质。此外，当完全干燥时，我们得到一层透明的复合膜，仍然保留一些可以可逆再水化的液晶结构。我们认为这个新系统可能是各向异性斑块粒子的模型系统。图形抽象
ABSTRACT Here we demonstrate that in the presence of the small, barrel-shaped molecule cucurbit[7]uril (CB[7]) Laponite clay particles undergo a phase transition into a birefringent gel with lamellar structure and a fluid, Laponite-poor aqueous solution. We employ various characterisation methods and polarised light microscopy to study this transition and the system's structural and optical properties. Furthermore, when dried completely we obtain a layered, transparent composite film, still retaining some liquid-crystalline structure that can be rehydrated reversibly. We argue that this new system may be a model system for anisotropic patchy particles. GRAPHICAL ABSTRACT