标题：Lyotropic liquid crystalline phases formed in binary mixture of 1-tetradecyl-3-methylimidazolium chloride/ethylammonium nitrate and its application in the dispersion of multi-walled carbon nanotubes
作者：Zhao, Mingwei; Gao, Yanan; Zheng, Liqiang
作者机构：[Zhao, Mingwei; Gao, Yanan; Zheng, Liqiang] Shandong Univ, Key Lab Colloid & Interface Chem, Minist Educ, Jinan 250100, Shandong, Peoples R China.
通讯作者地址：[Zheng, LQ]Shandong Univ, Key Lab Colloid & Interface Chem, Minist Educ, Shanda NanLu 27, Jinan 250100, Shandong, Peoples R China.
来源：COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
关键词：Liquid crystalline; Ionic liquid; Multi-walled carbon nanotubes
摘要：The phase behavior of a surfactant-like ionic liquid 1-tetradecyl-3-methylimidazolium chloride (C(14)mimCl) in a room-temperature ionic liquid ethylammonium nitrate (EAN) is studied. The lyotropic liquid crystalline (LLC) phases formed in the binary mixture are thoroughly investigated by polarized optical microscopy (POM) and small-angle X-ray scattering (SAXS) measurements, and the temperature effect on the LC phases is also elucidated. Then, a hexagonal (H-1) LC phase was used to disperse multi-walled carbon nanotubes (MWCNTs). Both POM images and SAXS patterns indicate that, the dispersion of MWCNTs cannot break the structure of H-1 phase. By comparing the theological properties before and after dispersing, it could be found that the incorporation of MWCNTs has increased the viscosity of H-1 phase. (C) 2010 Elsevier B.V. All rights reserved.