聚氨酯基聚合物分散液晶的制备及电光性能研究

刘芳; 曹晖; 计鹏飞; 刘凯强; ELLAHI Mujtaba; 杨洲; 杨槐

doi:10.3788/YJYXS20132801.0001

您当前的位置：

首页 >

文章列表页 >

聚氨酯基聚合物分散液晶的制备及电光性能研究

材料物理和化学 | 更新时间：2020-08-12

- 聚氨酯基聚合物分散液晶的制备及电光性能研究
- Preparation and Electro-Optical Properties of Polyurethane Matrix Based Polymer Dispersed Liquid Crystal Films
- 液晶与显示 2013年28卷第1期页码：1-6
- 作者机构：
  
  1. 北京大学工学院北京,100871
  2. 北京科技大学材料科学与工程学院, 北京 100083
- 作者简介：
- 基金信息：
  
  国家自然科学基金项目(No.51203011)();中央高校基本科研业务费专项资金(No.FRF-TP-12-032A)()
- DOI：10.3788/YJYXS20132801.0001
  中图分类号： TN27;TN141.9
- 收稿日期：2012-11-25，
  
  修回日期：2012-12-21，
  
  纸质出版日期：2013-02-15
- 稿件说明：
移动端阅览
刘芳, 曹晖, 计鹏飞, 刘凯强, ELLAHI Mujtaba, 杨洲, 杨槐. 聚氨酯基聚合物分散液晶的制备及电光性能研究[J]. 液晶与显示, 2013,(1): 1-6

LIU Fang, CAO Hui, JI Peng-fei, LIU Kai-qiang, ELLAHI Mujtaba, YANG Zhou, YANG Huai. Preparation and Electro-Optical Properties of Polyurethane Matrix Based Polymer Dispersed Liquid Crystal Films[J]. , 2013,(1): 1-6
刘芳, 曹晖, 计鹏飞, 刘凯强, ELLAHI Mujtaba, 杨洲, 杨槐. 聚氨酯基聚合物分散液晶的制备及电光性能研究[J]. 液晶与显示, 2013,(1): 1-6 DOI： 10.3788/YJYXS20132801.0001.

LIU Fang, CAO Hui, JI Peng-fei, LIU Kai-qiang, ELLAHI Mujtaba, YANG Zhou, YANG Huai. Preparation and Electro-Optical Properties of Polyurethane Matrix Based Polymer Dispersed Liquid Crystal Films[J]. , 2013,(1): 1-6 DOI： 10.3788/YJYXS20132801.0001.

摘要

采用热聚合分相法制备了聚氨酯基聚合物分散液晶(PDLC)薄膜

研究了不同聚合温度及不同单体浓度下制备的PDLC薄膜的电光性能

并结合扫描电镜探讨了聚合物网络形貌与电光性能之间的关系。研究发现:当单体质量分数为30%

聚合温度为343.2 K

制备的PDLC电光性能较为理想。

Abstract

Polymer dispersed liquid crystal (PDLC) films with polyurethane matrix were prepared by the thermal polymerization-induced phase separation method. The electro-optical properties of the PDLC films prepared under different polymerization temperatures and monomer concentrations were studied. The relationship between the morphology of polymer networks and the electro-optical properties were investigated also. It was found that under the condition that the monomer content was 30%

the polymerization temperature was 343.2 K

the electro-optical properties of the prepared PDLC film were optimum.

关键词

Keywords

references

Doane J W, Golemme A, West J L, et al. Polymer dispersed liquid crystals for display application [J]. Mol. Cryst. Liq. Cryst., 1988, 165(1): 511-532.

Zumer S. Light scattering from nematic droplets: Anomalous-diffraction approach [J]. Phys. Rev. A, 1988, 37(10): 4006-4015.

Whitehead J B Jr., Zumer S, Doane J W. Light scattering from a dispersion of aligned nematic droplets [J]. J. Appl. Phys., 1993, 73(3): 1057-1065.

Cho Y H, Kim B K. Effect of monoacrylate type in UV curable PU acrylate based bicontinuous polymer/liquid crystal networks [J]. J. Polym. Sci. B: Polym. Phys., 1998, 36(8): 1393-1399.

Doane J W, Vaz N A, Wu B G, et al. Field controlled light scattering from nematic microdroplets [J]. Appl. Phys. Lett., 1986, 48(4): 269-271.

Kashima M, Cao H, Liu H J, et al. Effects of the chain length of crosslinking agents on the electro-optical properties of polymer-dispersed liquid crystal films [J]. Liq. Cryst., 2010, 37(3): 339-343.

Sahraoui A H, Delenclos S, Longuemart S, et al. Heat transport in polymer-dispersed liquid crystals under electric field [J]. J. Appl. Phys., 2011, 110(3): 033510(1-5).

Liu F, Cao H, Mao Q, et al. Effects of monomer structure on the morphology of polymer network and the electro-optical property of polymer dispersed liquid crystal films [J]. Liq. Cryst., 2012, 39(4): 419-424.

范志新, 刘洋, 杨磊,等. 聚合物分散液晶的电场诱导定向聚合实验研究[J]. 液晶与显示, 2012, 27(4):434-438.

Kim S H, Heo C P, Park K S, et al. Effect of prepolymer structure on the electro-optic performance of polymer dispersed liquid crystals [J]. Polym. Int., 1998, 46(2): 143-149.

Malik P, Raina K K. Droplet orientation and optical properties of polymer dispersed liquid crystal composite films [J]. Opt. Mater., 2004, 27(3): 613-617.

Tao H J, Zhang J, Wang X L, et al. Phase separation and polymer crystallization in a poly(4-methyl-1-pentene)-dioctylsebacate-dimethylphthalate system via thermally induced phase separation [J]. J. Polym. Sci. B: Polym. Phys., 2007, 45(2): 153-161.

Kim B K, Kim S H, Song J C. Polymer network liquid crystals from u.v. curable polyurethane acrylate [J]. Polymer, 1998, 39(24): 5949-5959.

Kim B K, Cho Y H, Lee J S. Effect of polymer structure on the morphology and electro-optic properties of UV curable PNLCs [J]. Polymer, 2000, 41(4): 1325-1335.

陈瑞兰, 陈海飞, 苏嘉旋,等. 聚氨酯丙烯酸酯体系PDLC膜的制备及性能研究[J]. 化学工程师, 2012, 26(5): 2-23.

刘益军. 聚氨酯原料及助剂手册 [M].北京:化学工业出版社, 2005: 19-21.

Jain S C, Rout D K. Electro-optic response of polymer dispersed liquid crystal films [J]. J. Appl. Phys., 1991, 70(11): 6988-6992.

Mucha M. Polymer as an important component of blends and composites with liquid crystals [J]. Prog. Polym. Sci., 2003, 28(5): 837-873.

Kalkar A K, Kunte V V, Deshpande A A. Electro-optic studies on polymer-dispersed liquid crystal composite films I: Composites of PVB-E7 [J]. J. Appl. Polym. Sci., 1999, 74(14): 3485-3491.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

聚氨酯丙烯酸酯的分子结构对聚合物分散液晶形貌和性能的影响

二向色性偶氮染料掺杂胆甾相液晶光阀的电光性能研究

用偏光显微术研究聚合物分散胆甾相液晶微滴形貌

液晶含量和引发剂含量对聚氨酯丙烯酸酯基聚合物分散液晶微观形貌和电光性能的影响

大分子引发剂的分子量对聚合物分散液晶的微观形貌影响