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本文以LB膜技术研究了向列相液晶的取向机理.选择了四种不同金属的可溶性酞菁化合物MPc-R_4作为取向材料,拉制成LB膜,诱导向列相正性液晶E-7.通过对菁酞LB膜的表征和液晶取向及电光性能的研究,认为液晶的取向是由分子间的相互作用力决定的.
In this paper, the orientation mechanism of nematic liquid crystal has been studied by using LB film technique. Four kinds of soluble phthalocyanine compound MPc-R_4 were selected as orientation materials and LB films were prepared to induce nematic liquid crystal E-7. By characterization of the phthalocyanine LB film and the study of the liquid crystal orientation and the electro-optical properties, it is considered that the orientation of the liquid crystal is determined by the intermolecular interaction force.