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A thermotropic liquid crystal polymer with photosensitive groups (liquid crystal photoresist), copoly(4‐methoxyphenyl) 4′‐(2″‐acroloyloxy ethoxy) benzoate (MPAEB)‐4‐vinylbenzyl cinnamate (VBC) was prepared, and its thermal behavior was characterized by a differential scanning calorimetry. The copolymer exhibited a liquid crystal mesophase between approximately 70°C and 120°C. In the mesophase, poly(MPAEB‐VBC) (85/15) had a higher photo‐crosslinking ability than that at room temperature and at 140°C, where the copolymer exhibited the isotropic phase. It was found that the liquid crystal photoresist had a high crosslinking ability owing to alignment of its photosensitive groups.
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Yamashita et al. (1994) studied this question.
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