设计并合成了两类含氟的负性液晶化合物,通过偏光显微镜和差示扫描量热仪的检测两类液晶化合物都为向列相液晶,且具有很好的液晶性能.全氟二苯乙炔类负性液晶具有很高的清亮点和低的黏度;全氟二苯亚乙基类负性液晶具有很低的黏度和小的双折射率,前者可作为自适应光学系统空间光调制器液晶材料;后者可作为TFT-LCD混合液晶材料中的减黏部分.两个目标化合物分别是通过sonogashira交叉偶联反应和钯催化加氢还原反应得到的.
参考文献
[1] | Dziaduszek J,Kula P,Dabrowski R,et al.General synthesis method of alkyl-alkoxymultifluorotolanes for negative high birefringence nematic mixtures[J].Liquid Crystals,2012,39(2):239-247. |
[2] | Ishinabe T,Miyashita T,Uchida T.Wide viewing-angle polarizer with a large wavelength range[J].Jpn.J.Appl.Phys.,2002,41:4553-4558. |
[3] | Oh-e M,Kondo K.Electro-optical characteristics and switching behavior of the in-plane switching mode[J].Appl.Phys.Lett.,1995,67:3895-3897. |
[4] | Itoh Y,Seki H,Uchida T,et al.A double-layer electrically controlled birefringence liquid-crystal display with a wide-viewing angle cone[J].Jpn.J.Appl.Phys.,1991,30:L1296-L1299. |
[5] | Wen C H,Wu S T,Dielectric heating effects of dual-frequency liquid crystals[J].Appl.Phys.Lett,2005,86(23):231104 231106. |
[6] | 张然,彭增辉,刘永刚,等.低黏度液晶的合成及性能研究[J].液晶与显示,2009,24(6):789 793. |
[7] | 黄锡珉.液晶显示技术的开发和产业化[J].液晶与显示,2002,17(6):403-415. |
[8] | Hird M,Gray G W,Toyne K J.The synthesis and transition temperatures of some trans-4-alkylcyclohexylethyl-substituted 2,3-difluoro-biphenyls[J].Liquid Crystals,1992,11(4):531 546. |
[9] | Reiffenrath V,Krause J,Plach H J,et al.New liquid-crystalline compounds with negative dielectric anisotropy[J].Liquid Crystals,1989,5(1):159-170. |
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%