標題: | SYNTHESIS AND CHARACTERIZATION OF SIDE-CHAIN LIQUID-CRYSTALLINE POLYMETHACRYLATES CONTAINING FLUORINATED DIPHENYLDIACETYLENE SIDE-GROUPS |
作者: | LU, YH TSAY, KT HSU, CS CHANG, HL 應用化學系 Department of Applied Chemistry |
關鍵字: | FLUORINATED DIPHENYLDIACETYLENE;SIDE-CHAIN LC POLYMER;POLYMETHACRYLATE;MESOMORPHIC PROPERTIES |
公開日期: | 1994 |
摘要: | The synthesis of four side-chain liquid crystalline polymethacrylates containing either 4-alkanyloxy-4'-flourodiphenyldiactylenes or 4-alkanyloxy-3',4'-difluorodiphenyldiacetylenes side groups is presented. The phase behavior of both monomeric and polymeric liquid crystals was characterized by differential scanning calorimetry and optical polarizing microscopy. All synthesized polymethacrylates present nematic mesomorphism. The glass transition temperature of the obtained polymers decreases as the spacer length increases. The mesomorphic behavior of the prepared polymers depends very much on the degree of substitution of the mesogenic side groups on the polymer backbones. |
URI: | http://hdl.handle.net/11536/2687 http://dx.doi.org/10.1080/10587259408028195 |
ISSN: | 1058-725X |
DOI: | 10.1080/10587259408028195 |
期刊: | MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS |
Volume: | 250 |
起始頁: | 85 |
結束頁: | 97 |
顯示於類別: | 期刊論文 |