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金属酞菁LB膜的制备及结构表征
引用本文:吕瑞波 李国镇. 金属酞菁LB膜的制备及结构表征[J]. 医学教育探索, 1995, 0(4): 517-522
作者姓名:吕瑞波 李国镇
作者单位:华东理工大学物理系,华东理工大学化学系
摘    要:研究了金属酞菁化合物四(2,4-二甲基苯氧基)酞菁铜和四(2,4-二甲基苯氧基)酞菁镍在汽-液界面上的成膜特性,制备了相应的Langmuir-Blodgett(LB)膜。利用紫外可见吸收及偏振紫外可见吸收谱,表征了LB膜中的酞菁分子主要以二聚体的形式相对于基片水平排列。以酞菁LB膜为取向层制成液晶盒,取向向列型液晶E_7。通过偏光显微镜及锥光干涉系统,确定液晶分子在LB膜上的排列情况,并进行了电光测试,讨论了导致不同取向效果的机理。

关 键 词:液晶 酞菁铜 酞菁镍 LB膜 金属酞菁 制备

Preparation of Phthaloeyanine Langmuir-Blodgett Films and Their Characteristics
Lu Ruibo,Zhong Juhu,Gu Yingiun,Zhang Zhaokui and Li Guozheng. Preparation of Phthaloeyanine Langmuir-Blodgett Films and Their Characteristics[J]. Researches in Medical Education, 1995, 0(4): 517-522
Authors:Lu Ruibo  Zhong Juhu  Gu Yingiun  Zhang Zhaokui  Li Guozheng
Abstract:The paper discusses the characteristics of copper tetrakis-(2,4-di-methyl phe-noxy)phthalocyanine(CuPc)and nickel tetrakis-(2,4-di-methyl phenoxy) phthalocyanine(NiPc)on the gas-liquid interface. The corresponding Langmuir-Blodgett(LB) films were prepared.It was confirmed that phthalocyanine molecules would lie flat on the substrates in dimers by UV-Vis and polarized UV-Vis spectral method. The LB films were used to align nematic liquid crystal E_7.Under a polarized microscope and the conoscopic system,the align-ment of the liquid crystal was observed on the LB films.The electro-optieal measurement was carried out.The mechanism of alignment was also discussed.
Keywords:liquid erystal  copper phthalocyanine  nickel phthalocyanine  alignment  angmair-Blodgett films.
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