Cinnamate를 곁사슬로 포함하는 감광성 고분자를 poly(2-hydroxyethyl methacrylate) (PHEMA)로부터 합성하였다. Cinnamate 기가 25에서 97mol%까지 치환된 감광성 고분자를 PHEMA와 cinnamoyl chloride의 반응을 통해 합성하였으며, 반응 조건에 따른 치환율의 변화를 조사하였다. 합성된 고분자는 H-NMR과 FT-IR을 이용하여 구조 확인하였으며, DSC와 TGA를 이용한 열분석을 행하였다. 얻어진 고분자의 광 반응성은 UV/VIS spectrophotometer를 이용하여 확인하였고, 편광 자외선 조사를 이용한 액정의 광배향 특성에 대해서 연구하였다.
A series of photosensitive polymers containing cinnamate side chain from poly(2-hydroxyethyl methacrylate) (PHEMA) with synthesized. The photosensitive polymer with substitution degree varing from 25 to 95mol% was synthesized from esterification reaction of reaction conditions. The resulting polymer was characterized by H-NMR and FT-IR, and thermal properties were analyzed by using DSC and TGA. Photosensitivity of the polymer was studied by using UV/Vis spectrometry, and liquid crystal photoaligning properties of this polymer upon polarized UV irradiation was also discussed.