Preparation and Electro-Optical Properties of Polyurethane Matrix Based Polymer Dispersed Liquid Crystal Films

LIU Fang; CAO Hui; JI Peng-fei; LIU Kai-qiang; ELLAHI Mujtaba; YANG Zhou; YANG Huai

doi:10.3788/YJYXS20132801.0001

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Preparation and Electro-Optical Properties of Polyurethane Matrix Based Polymer Dispersed Liquid Crystal Films

更新时间：2020-08-12

- Preparation and Electro-Optical Properties of Polyurethane Matrix Based Polymer Dispersed Liquid Crystal Films
- Chinese Journal of Liquid Crystals and Displays Vol. 28, Issue 1, Pages: 1-6(2013)
- 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：
- DOI：10.3788/YJYXS20132801.0001
  CLC： TN27;TN141.9
- Received：25 November 2012，
  
  Revised：21 December 2012，
  
  Published：15 February 2013
- 稿件说明：
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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.

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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.

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