【作者】 余振强； 朱才镇； 刘剑洪； Lam Jacky W.Y.； 赵可清； 唐本忠；

【Author】 Yu Zhen-qiang~1,Zhu Cai-zhen~1,Liu Jian-hong~1,Jacky W.Y.Lam~2, Zhao Ke-qing~3,Tang Ben-zhong~2 1.School of Chemistry and Chemical Engineering and Shenzhen key laboratory of functional polymers,Shenzhen University,Shenzhen 518060; 2.Department of Chemistry,The Hong Kong University of Science and Technology, Clear Water Bay,Kowloon,Hong Kong; 3.College of Chemistry and Material Science,Sichuan Normal University, Chengdu 610066

【机构】 深圳大学化学与化工学院,深圳市功能高分子重点实验室； 香港科技大学化学系； 四川师范大学化学与材料科学学院；

【摘要】 <正>盘状液晶材料在光存储、有机半导体、光电导体、光电池电荷传输材料及液晶显示材料等方面显示出巨大的应用前景。聚乙炔等具有刚性主链的侧链液晶高分子的相结构与相转变的研究对理解高分子液晶凝聚态结构具有重要意义。单取代侧链液晶聚炔的本体相行为的研究表明,具有刚性主链的侧链液晶聚炔以整个分子形成更多还原

【Abstract】 Monosubstituted polyacetylenes(MSPA) with cis- configurations render rod-like shapes and can form columnar liquid crystalline(LC) phase,while MSPA with trans- configurations resulting in a sheet-like molecular shape and leads to a smectic phase.In this study,the phase structures of a series of side-chain liquid crystalline polyacetylenes containing triphenylene discogens and the corresponding monomers studied by differential scanning calorimetry(DSC),one dimensional wide angle X-ray diffraction(WAXD),two dimensional WAXD,and the phase structures simulated by molecular dynamic simulation.The results show that the monomer self-organized into hexagonal columnar phase and the discogens helically packed around the rigid backbone and form a rod-like structure with a diameter of 3.45nm and the rod-like structure self-organized into hexagonal columnar phase.更多还原