合成了化合物1-[(1-乙基羰基)乙基]-4-[4(2,3,5,6-四氟4烷氧基苯基)乙炔基]苯基对苯二甲酸酯(n=5,6,7,8).用热台偏光显微镜及差示量热分析法研究该化合物的液晶性,讨论了氟取代基及桥键对液晶性的影响.所有化合物皆显示互变的胆甾相,黏度低双折射较高,化学稳定,可以用于反射型液晶显示器及自适应光学系统.目的物的最后合成采用Sonogashira父叉偶合法.
参考文献
| [1] | Hird M.Fluorinated liquid crystals-properties and applications[J].CHEMICAL SOCIETY REVIEWS,200736:2070-2095. |
| [2] | Yang D K;Huang X Y;Zhu Y M.Bistable cholesteric reflective display:materials and drive schemes[J].Annu Rev Sci,199727:117-146. |
| [3] | Yamaguchi T;Kawata Y.Driving voltage reflective Ch-LCD[J].Journal of Applied Physics,199985(11):7511-7516. |
| [4] | Taheri B;West J L;Yang D K.Recent development in bistableChLCD[J].SPIE,19983297:115-134. |
| [5] | Coates D;Gray G W.Optical studies of the amorphous liquid cholesteric liquid crystal transition:The "blue phase"[J].Physics Letters A,197345:115-116. |
| [6] | Kikuchi H;Yokota M;Hisakado Y.Polymer stabilized liquid crystal blue phases[J].NATURE MATERIALS,20021:64-68. |
| [7] | Li Y;Jiao M;Wu S T.Transflective display using a polymer stabilized blue phase liquid crystal[J].Opt Erpress,200218:16486-16491. |
| [8] | Macus M;Goodby J W.Cholesteric Pitch and Blue Phases in a Chiral Racemic Mixture[J].Molecular Crystals and Liquid Crystals,198272:297. |
| [9] | Finn P L;Cladis P E.Cholesteric blue phases in mixtures and in an electric field[J].Molecular Crystals and Liquid Crystals,198284:159. |
| [10] | Navailles L;Nguyen H T;Barois P.Smectic A twist grain boundary phase in three new series with chiral (L) lactic acid derivatives[J].Liquid Crystals,199315(04):479-495. |
| [11] | Chen X M;Yin H Y;Xu Y L.Synthesis and mesomorphic properties of novel tetrafluorinated biphenyl acety-lene liquid crystals with a blue phase[J].Chinese Journal of Chemistry,199816(03):277-283. |
| [12] | 陈锡敏;闻建勋.含氟二苯乙炔类蓝相液晶的研究进展[J].液晶与显示,201328(01):33-44. |
| [13] | Yang Y G;Li H T;Wen J X.Synthesis and mesomorphic properties of chiral fluorinated liquid crystals[J].Liquid Crystals,200734(08):975-979. |
| [14] | 何军;张然;鲁兴海.快速高双折射率向列相液晶的分子设计与模拟计算[J].液晶与显示,200924(01):1007-2780. |
| [15] | Gauza S;Wang H;Wen C H.High birefringence isothiocyanato tolane liquid crystals[J].Japanese Journal of Applied Physics,200342:3463-3466. |
| [16] | Gauza S;Wen C H;Wu S T.Super high birefringence isothiocyanato biphenyl-bistolane liquid crystals[J].Japanese Journal of Applied Physics,200443:7634-7638. |
| [17] | Ziobro D;Kula P;Dziaduszek J.Mesomorphic and dielectric properties of esters useful for formulation of nematic mixtures for dual frequency addressing system[J].Opto-Electron,200917(01):16-19. |
| [18] | 闻建勋;陈齐;郭志红 等.含全氟苯环的液晶化合物及制备方法[P].中国,92108444.7,1992. |
| [19] | Xu Y L;Wang W L;Chen Q.Synthesis and transition temperature of novel fluorinated chiral liquid crystals containing 1,4-tetrafluorophenylene units[J].Liquid Crystals,199621(01):65-71. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%