Self-assembly of globular particles in a nematic dispersion of colloidal rods
Self-assembly of globular particles in a nematic dispersion of colloidal rods
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DOI：
10.1063/1.1501476
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发表时间：
2002-08
影响因子：
4.4
通讯作者：
P. Schoot
中科院分区：
文献类型：
--
作者：
P. Schoot
小的球形客体颗粒加入到向列状胶体棒的液晶分散中，自线性组装成链状聚集体。我们认为，这些链的形成是由小球与向列矩阵的非体积耦合引起的，并且混合物中的过渡前波动引起了实验中观察到的线性聚集体的结构重组。最终，球和棒之间的排斥相互作用要么促进大规模的脱混，要么过渡到微相分离的层状状态，这取决于宿主弥散中棒的浓度。
Small spherical guest particles added to a nematic liquid-crystalline dispersion of colloidal rods self-assemble linearly into chain-like aggregates. We argue that the formation of these chains is induced by the excluded-volume coupling of the globules to the nematic matrix, and that pretransitional fluctuations in the mixture give rise to the structural reorganization of the linear aggregates observed in experiment. Ultimately, the repulsive interactions between the globules and the rods either promote large-scale demixing or a transition to a microphase-separated lamellar state, depending on the concentration of rods in the host dispersion.