Synthesis and Phase Structures of Mesogen-Jacketed Liquid Crystalline Polyelectrolytes and Their Ionic Complexes
Synthesis and Phase Structures of Mesogen-Jacketed Liquid Crystalline Polyelectrolytes and Their Ionic Complexes
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介晶包覆液晶聚电解质及其离子配合物的合成和相结构
DOI：
10.1021/ma2001004
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发表时间：
2011-05-24
期刊：
影响因子：
5.5
通讯作者：
Zhou, Qi-Feng
中科院分区：
文献类型：
--
作者：
Cheng, Yan-Hua;Chen, Wen-Ping;Zhou, Qi-Feng
设计并通过自由基聚合方法成功地合成了两种夹套型液晶聚电解质：聚{2，5-双[（4-磺酸基苯基）氨基羰基]苯乙烯钠}和聚{2，5-双[（4-磺酸基苯基）氧羰基]苯乙烯钠}，其中心含有不同的键，侧链两端含有磺酸基. X射线散射实验表明，这两种聚合物表现出近晶A相的散装。将不同长度和形状的阳离子脂质与阴离子磺化聚电解质混合，得到梳形非化学计量的聚合物-表面活性剂复合物。复合物有序结构的形成依赖于脂质的长度和形状。当这两种聚电解质与十六烷基三甲基溴化铵和扇形3，4，5-三（十二烷氧基）苯胺络合时，观察到层状相。由于静电相互作用的键强度较强，因此，基于有机相的配合物的中间相类型也有所不同。
Two mesogen-jacketed liquid crystalline polyelectrolytes, poly{sodium 2,5-bis[(4-sulfophenyl)aminocarbonyl]styrene} and poly{sodium 2.5-bis[(4-sulfophenyl)oxycarbonyl]styrene}, with rigid cores containing different linkages at the center and sulfonate groups on the two ends in the side chains were designed and successfully synthesized via conventional radical polymerization. X-ray scattering experiments revealed that the two polymers exhibited smectic A phases in bulk. Comb-shaped nonstoichiometric polymer–surfactant complexes were obtained by mixing the anionic sulfonated polyelectrolytes and cationic lipids of different lengths and shapes. The formation of ordered structures of the complexes depended on the length and shape of the lipids. Lamellar phases were observed when the two polyelectrolytes complexed with cetyltrimethylammonium bromide and fan-shaped 3,4,5-tris(dodecyloxy)benzenamine. Owing to the stronger bond strength of electrostatic interactions, the types of mesophases of the complexes based...