Homogeneous and homeotropic alignment of bent-core uniaxial and biaxial nematic liquid crystals
Homogeneous and homeotropic alignment of bent-core uniaxial and biaxial nematic liquid crystals
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弯芯单轴和双轴向列液晶的均匀和垂直排列
作者：
HG. Yoon;S.-W. Kang;M. Lehmann;J. O. Park;M. Srinivasarao;S. Kumar
The effect of well-established homeotropically and homogeneously aligning polyimides, developed for calamitic liquid crystals, on the alignment of the nematic phases of bent-core mesogens was investigated using polarizing optical microscopy and conoscopy. Two polyimides, the homogeneously aligning SE7792 and the homeotropically aligning S659, were used to align three bent-core mesogens. Two of the mesogens, with an azo group in one of their arms, are found to align in a manner similar to the calamitic mesogens, while a fluorenone core based mesogen counter-intuitively aligns homogeneously on S659 coated surface and homeotropically on SE7792. Attractive interactions between unidirectionally oriented polyimide side-chains and the alkyl chains of mesogens determine the direction of alignment of the nematic director.
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聚合物分散液晶锚定行为的控制：聚丙烯酸酯侧链支化的影响。
影响因子：
15
作者：
Jian Zhou;D. Collard;J. Park;M. Srinivasarao
通讯作者：
M. Srinivasarao
研究正介电各向异性液晶双轴性的新方法——以弯芯材料为例
DOI：
--
发表时间：
2009
期刊：
Phys. Rev. E 79
影响因子：
--
作者：
K. V. Le;M. Mathew;M. Chambers;J. Harden;Q. Li;H. Takezoe;A. Jakli
通讯作者：
A. Jakli
液晶和聚合物中的偏振光
影响因子：
3.1
作者：
S. Jewell
通讯作者：
S. Jewell
弯芯材料中的向列双轴性。
DOI：
10.1103/physreve.81.051706
发表时间：
2010
期刊：
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子：
--
作者：
H. Yoon;Shin;R. Y. Dong;A. Marini;K. A. Suresh;M. Srinivasarao;Satyendra Kumar
通讯作者：
Satyendra Kumar