Synthesis and investigation of photophysical and photochemical properties of new side-group liquid crystalline polymers containing coumarin moieties
Synthesis and investigation of photophysical and photochemical properties of new side-group liquid crystalline polymers containing coumarin moieties
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DOI：
10.1039/b408554j
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发表时间：
2004-12
影响因子：
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通讯作者：
Yanqing Tian;Eiich Akiyama;Y. Nagase;A. Kanazawa;O. Tsutsumi;T. Ikeda
中科院分区：
文献类型：
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作者：
Yanqing Tian;Eiich Akiyama;Y. Nagase;A. Kanazawa;O. Tsutsumi;T. Ikeda
合成并研究了4种含香豆素（2-氧代-2H-1-苯并吡喃）的液晶聚甲基丙烯酸酯，它们具有相同的单体结构，但它们的液晶基元在同一主链上的连接方向和/或结构方向不同。四种聚合物中的每一种都表现出近晶A液晶相。结构和/或键合方向的改变显着影响其液晶性能。特别是液晶基元结构方向的改变导致了不同的光物理和光化学性质。
Four coumarin (2-oxo-2H-1-benzopyran) containing liquid crystalline polymethacrylates possessing the same monomer formula but different linkage directions and/or construction directions of their mesogens into the same main-chain were prepared and investigated. Each of the four polymers exhibits a smectic A liquid crystalline phase. The change of construction and/or linkage directions significantly affected their liquid crystalline properties. Especially, the change of the construction directions of the mesogens caused different photophysical and photochemical properties.