Morphological Studies of a Dicholesteryl Compound Forming Glassy Liquid Crystal Behavior
Cholesteryl cinnamate is photodimerized and dicholesteryl diphenyl cyclobutanediate (DDC) with a rigid chain cyclobutane is synthesized. Glassy cholesteric DDC liquid crystal (LC) is prepared, and the principle of glassy LC is discussed. In-situ studies of structural and morphological changes during the process of forming glassy LC of DDC are carried out by using synchrotron wide-angle X-ray diffraction (WAXD) techniques and differential scanning calorimetry (DSC). A unique image analysis method is used to deconvolute the twodimensional (2D) WAXD patterns into quantitative fractions of crystal, mesomorphic, and amorphous phases. The test shows that it could be reversibly solidified and maintained cholesteric colors. In addition, the color of the solid could be controlled and selected from the entire visible region, and color switch is considerable fast, so it can be used as rewritable color recording materials.
Xiaoming Dong Jinbao Guo Jie Wei
College of Materials Science and Engineering, Beijing University of Chemical Technology Beijing, P. College of Materials Science and Engineering, Beijing University of Chemical Technology Beijing, P.
国际会议
The 31st International Congress on Imaging Science(第31届国际影像科学大会 ICIS2010)
北京
英文
364-367
2010-05-12（万方平台首次上网日期，不代表论文的发表时间）