Decoration of disclinations by solidification-induced band texture and focal-conic texture for a low-molar-mass liquid crystal

作     者：GU Qincui WU Changcheng CHEN Shouxi HUANG Yong 

作者机构：State Key Laboratory of Polymer Physics and ChemistryCenter for Molecular ScienceInstitute of ChemistryChinese Academy of SciencesBeijing 100080China Laboratory of Cellulose and Lignocellulosics ChemistryGuangzhou Institute of ChemistryChinese Academy of SciencesGuangzhou 510650China 

出 版 物：《Chinese Science Bulletin》 (中国科学通报)

年 卷 期：2002年第47卷第20期

页      面：1711-1713页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：The work was supported by the National Natural Science Foundation of China ( Grant No. 29925411) 

主　　题：decoration disclination solidification-induced band texture focal-conic texture liquid crystal. 

摘      要：Two decoration techniques, solidification-induced band texture decoration and focal-conic texture decoration, have been established to exhibit the director field of disclinations in a low-molar-mass methacrylate liquid crystal. The disclinations with strength s=1/2 and s=±1 are observed by the two decoration methods. For the solidification-induced band texture decoration, the molecular orientation is perpendicular to the direction of the band. While for focal-conic texture decoration, it has been proved by the results of IR dichroism that the direction of the director is parallel to the direction of the focal-conic. Therefore, the sketch map of the molecular director filed can be mapped according to the morphological pattern of the solidification-induced band texture or focal-conic texture.