Two distinct cylinder arrangements in monodomains of a lyotropic liquid crystalline hexagonal II phase: monodomains with straight cylinders and ringed cylinders in capillaries
Two distinct cylinder arrangements in monodomains of a lyotropic liquid crystalline hexagonal II phase: monodomains with straight cylinders and ringed cylinders in capillaries
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溶致液晶六方 II 相单域中的两种不同的圆柱排列：毛细管中具有直圆柱体和环形圆柱体的单域
DOI：
10.1021/acs.langmuir.6b00996
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发表时间：
2016
期刊：
影响因子：
3.9
通讯作者：
Toshihiko Oka* and Noboru Ohta
中科院分区：
文献类型：
--
作者：
Toshihiko Oka;Toshihiko Oka* and Noboru Ohta
我们报告了一种方法，以产生两个不同的monodomain的逆六方II（HII）相在毛细管。将在反胶束相中填充有甘油单油基醚（GME）的胶囊浸泡在水中。一周后，在直径为1.0 mm的毛细管中观察到具有直圆柱体的HII相单畴，直圆柱体的轴几乎平行于毛细管轴，并且圆柱体略有起伏。HII相的晶格常数为5.85 nm，表明单畴完全水合。在0.2mm直径的毛细管中观察到另一个具有环状圆柱体的单畴。环形圆柱体与圆形毛细管壁对齐，其中六边形晶格中的一个方向总是面向壁。晶格常数为4.89 nm，由此估计的单畴的水含量几乎是报道的HII相的最低值。具有环形圆柱体的单畴由毛细管壁和低含水量稳定。这种制备特异性单结构域的方法有望为HII相的基础和应用研究提供有益的参考。
We report a method to produce two different monodomains of an inverse hexagonal II (HII) phase in capillaries. Capillaries filled with glyceryl monooleyl ether (GME) in an inverted micellar phase were soaked in water. After a week, a monodomain of the HIIphase with straight cylinders was observed in a capillary with a diameter of 1.0 mm. The axis of the straight cylinders was almost parallel to the capillary axis, and the cylinders were slightly undulated. The lattice constant of the HIIphase was 5.85 nm, which indicated the monodomain was fully hydrated. Another monodomain with ringed cylinders was observed in a 0.2 mm diameter capillary. The ringed cylinders aligned to the round capillary wall, where one of the ⟨10⟩ directions in the hexagonal lattice always faced the wall. The lattice constant was 4.89 nm, from which the estimated water content of the monodomain was almost the lowest reported for the HIIphase. The monodomain with ringed cylinders is stabilized by the capillary wall and the low water content. This method to produce specific monodomains is expected to be of benefit for basic and applied research on the HIIphase.