| 초록 |
Polyimides can be widely used as a material for electro-optic devices on their own advantages such as excellent thermal property, good mechanical property and electrical property, etc. In this study, a series of polyimides were synthesized from functional diamines having lateral imide moiety and alicyclic dianhydride like cyclobutane-1,2,3,4-tetracarboxylic dianhydride [CBDA] or 5-(2,5-dioxotetrahydrofuryl)-3-methyl-3-cyclohexene-1,2-dicarboxylic anhydride [DOCDA]. We have measured general properties such as solubility, thermal properties, transparency of the resulting polyimides and also investigated electro-optic properties of LCD cell fabricated with the polyimides, which showed very high pretilt angle above 87°after rubbing process. Further, we will discuss relationship of the pretilt angle with chemical structure of polyimides.
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