通过脂肪酸和三苯环化合物 1,3-phenylene bis(4-hydroxybenzylideneamine)的酯化反应合成了对称的同系物三苯环香蕉形分子化合物 N,N-bis(4-(alkylcarbonyloxyl)benzylidene)benzene-1,3-diamine,其末端酯基尾链中的碳原子数为1～12.用偏光显微镜和差示扫描量热分析法对所合成的三苯环香蕉形分子化合物进行了细致的表征.结果表明:这些三苯环香蕉形分子化合物在第二次升温和第二次降温过程中均能够形成液晶相,其香蕉相分别在187～218℃(升温)和120～179℃(降温)之间形成.
A homologous series of three-benzene-ring containing bent-core compounds N, N-bis(4-(alkylcarbonyloxyl) benzylidene) benzene-1, 3-diamine were synthesized by esterifying aliphatic acids with the three-benzene-ring containing bent-core 1, 3-phenylene bis (4-hydroxybenzylideneamine), the number of carbon atoms in their two symmetric terminal arms is from 1 to 12. The mesomorphic properties of the homologous series of the three-benzene-ring containing bent-core compounds were characterized by means of polarized optical microscopy and differential scanning calorimetery. The results have demonstrated that the three-benzene-ring containing bent-core compounds can form mesophases.
参考文献
| [1] | 李静,邹忠飞,乌日娜,等.柔性双官能团聚合物制备网络稳定铁电液晶器件[J].液晶与显示,2007,22(1):6-10. |
| [2] | Walba D M,Korblova E,Shao R,et al.A ferroelectric liquid crystal conglomerate composed of racemic molecules[J].Science,2000,288:2181-2184. |
| [3] | Huang Y M,Chen L,Zhou F F,et al.Voltage-induced Flow Instability and Turbulence in Banana-shaped Liquid Crystal[C]//New Trends in Fluid Mechanics Research,Beijing:Tsinghua University Press & Springer,2007:61-64. |
| [4] | Huang Y M.Photosensitive banana-shaped antiferroelectric liquid crystalin[C]//Trends in Optics and Photonics Series:Photore fractive Effects,Materials and Devices,Washington USA:Optical Society of America,2005:288-293. |
| [5] | Huang Y M,Zhai B G.Electronic structure calculation of banana-shaped liquid crystals[J].Mol.Cryst.Liq.Cryst.,2009,510:214-222. |
| [6] | Huang Y M,Zhai B G,Zhou F F.Effects of photo-irradiation on the optical properties and electronic structures of an azo-containing bent-core liquid crystal[J].Mol.Cryst.Liq.Cryst.,2009,510:34-42. |
| [7] | Tang Y,Mei C,Li S,et al.Synthesis and characterization of a three-ring bent-core compound[J].Chin.Sci.Bull.,2005,50(17):1849-1853. |
| [8] | Huang Y M,Zhou F F,Zhai B G.Fabrication of organic groove-free gratings[J].Acta Optica Sinica,2009,29.1160-1162. |
| [9] | Achten R,Cuypers R,Giesbers M,et al.Asymmetric banana-shaped liquid crystals with two different terminal alkoxy tails[J].Liq.Cryst.,2004,31:1167-1174. |
| [10] | Achten R,Cuypers R,Giesbers M,et al.Non-symmetric bent-core mesogens with one terminal vinyl group[J].Liq.Cryst.,2005,32:277-285. |
| [11] | Huang Y M,Zhai B G.Fractal features of growing aggregates from isotropic melt of a chiral bent-core liquid crystal[J].Mol.Cryst.Liq.Cryst.,2009,511:337-347. |
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