由液晶和碳纳米管组成的混合物。

Mixtures composed of liquid crystals and carbon nanotubes.

作者信息

Popa-Nita V

机构信息

Faculty of Physics, University of Bucharest, P. O. Box MG-11, Bucharest 077125, Romania.

出版信息

J Chem Phys. 2014 Apr 28;140(16):164905. doi: 10.1063/1.4872241.

DOI:10.1063/1.4872241

PMID:24784308

Abstract

The phenomenological model to describe the liquid crystal-carbon nanotubes mixture presented in a previous paper [P. van der Schoot, V. Popa-Nita, and S. Kralj, J. Phys. Chem. B 112, 4512 (2008)] has been extended to include the isotropic carbon nanotubes-nematic thermotropic liquid crystal interaction. It is assumed that the carbon nanotubes in the isotropic phase act as an external random field on liquid crystal component. The influence of the randomly orientational disorder on the phase diagram of the mixture and orientational order parameters profiles of both components is theoretically analyzed for different values of temperature, volume fraction of carbon nanotubes, nematic carbon nanotubes-nematic liquid crystal coupling strength and the random field strength.

摘要

先前一篇论文[P. van der Schoot, V. Popa-Nita, and S. Kralj, J. Phys. Chem. B 112, 4512 (2008)]中提出的用于描述液晶 - 碳纳米管混合物的唯象模型已得到扩展，以纳入各向同性碳纳米管 - 向列型热致液晶相互作用。假定各向同性相中的碳纳米管对液晶组分起外部随机场的作用。针对不同的温度值、碳纳米管的体积分数、向列型碳纳米管 - 向列型液晶耦合强度以及随机场强度，从理论上分析了随机取向无序对混合物相图以及两种组分的取向序参量分布的影响。