Polarization microscopy study on polymer dispersed cholesteric liquid crystal droplets

WEI Wei; DING Lan; FAN Zhi-xin

doi:10.3788/YJYXS20142905.0662

您当前的位置：

首页 >

文章列表页 >

Polarization microscopy study on polymer dispersed cholesteric liquid crystal droplets

Table of contents | 更新时间：2020-08-12

- Polarization microscopy study on polymer dispersed cholesteric liquid crystal droplets
- Chinese Journal of Liquid Crystals and Displays Vol. 29, Issue 5, Pages: 662-667(2014)
- 作者机构：
  
  1. 无锡科技职业学院电子工程学院,江苏无锡,214028
  2. 河北工业大学理学院, 天津 300401
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20142905.0662
  CLC： O438
- Received：04 May 2014，
  
  Revised：18 June 2014，
  
  Published：05 October 2014
- 稿件说明：
移动端阅览
魏巍, 丁兰, 范志新. 用偏光显微术研究聚合物分散胆甾相液晶微滴形貌[J]. 液晶与显示, 2014,29(5): 662-667

WEI Wei, DING Lan, FAN Zhi-xin. Polarization microscopy study on polymer dispersed cholesteric liquid crystal droplets[J]. , 2014,29(5): 662-667
魏巍, 丁兰, 范志新. 用偏光显微术研究聚合物分散胆甾相液晶微滴形貌[J]. 液晶与显示, 2014,29(5): 662-667 DOI： 10.3788/YJYXS20142905.0662.

WEI Wei, DING Lan, FAN Zhi-xin. Polarization microscopy study on polymer dispersed cholesteric liquid crystal droplets[J]. , 2014,29(5): 662-667 DOI： 10.3788/YJYXS20142905.0662.

摘要

制备出较大微滴聚合物分散胆甾相液晶样品，用偏光显微镜观察到该微滴具有奇特的宝石形貌。提出聚合物分散胆甾相液晶中液晶微滴有垂面和沿面螺旋新构型，与聚合物分散向列相液晶的双极和辐射分布构型相对应，认为宝石形貌可能对应着胆甾相液晶在微滴中呈现沿面螺旋与垂面螺旋构型简并共存多畴形貌。本实验研究具有液晶光学基础研究意义和设计新型液晶器件的实用参考价值。

Abstract

Polymer dispersed cholesteric liquid crystal samples with large droplets were made

and the droplets had strange "gem" texture by polarizing microscope. The new vertical helix and parallel helix configuration in the polymer disperse cholesteric liquid crystal droplets were proposed. Considering the bipolar and radiation configuration of polymer disperse nematic liquid crystal

the "gem" texture may correspond with degeneracy coexistence of multi domain texture of vertical helix and parallel helix configuration. This experiment had basic research significance for liquid crystal optics and reference value to design the new liquid crystal device.

关键词

Keywords

references

Wu B G, John L W, William D. Angular discrimination of light transmission through polymer dispersed liquid crystal films[J].J. Appl. Phys.,1987,62(9):3925-3931.[2] Ding J D, Yang Y L. Birefringence patterns of nematic droplets[J].Jpn. J. Appl. Phys.,1992, 31(9):2837-2845.[3] 曾勃. 聚合物分散液晶的制备及电光特性研究[D]. 成都:电子科技大学,2006. Zeng B. Fabrication and electro-optic property research of polymer dispersed liquid crystal[D]. Chengdu:University of Electronic Science and Technology of China, 2006.(in Chinese)[4] 窦艳丽. 聚合物分散液晶膜的制备与研究[D].长春:吉林大学, 2007. Dou Y L. Fabrication and research of polymer dispersed liquid crystal films[D]. Changchun:Jilin University, 2007.(in Chinese)[5] 于天池,范志新,张翠云,等. 聚合物分散液晶增强散射的理想模型[J]. 光学学报, 2009,28 (9):1757-1760. Yu T C, Fan Z X, Zhang C Y, et al.Ideal model of polymer dispersed liquid crystal for enhanced scattering[J].Acta Optica Sinica,2008,28(9):1757-1760.(in Chinese)[6] 范志新,解一军,魏向东,等. 聚合物分散液晶膜的压光效应[J]. 光学学报, 2011,31(1):0131005. Fan Z X, Xie Y J, Wei X D, et al.Piezo-optical effect of polymer dispersed liquid crystal films[J].Acta Optica Sinica,2011, 31(1): 0131005.(in Chinese)[7] 黎振远,范志新,李金炜,等. 用偏光显微术研究聚合物分散液晶压光效应膜[J]. 光学学报, 2011,31(8),0816001. Li Z Y, Fan Z X, Li J W, et al.Polarization microscopy study on piezo-optical effect of polymer dispersed liquid crystal films[J].Acta Optica. Sinica, 2011, 31(8): 0816001.(in Chinese)[8] 王新久.液晶光学和液晶显示[M].北京: 科学出版社, 2006:182-195, 297-300. Wang X J.The Optics of Liquid Crystal and the Liquid Crystal Displays[M].Beijing: Science Press, 2006:182-195, 297-300.(in Chinese)[9] Gerald P C. Microencapsulation effects on the electro-optical behavior of polymer cholesteric liquid crystal flakes[D]. New York:University of Rochester, 2009.[10] 范志新,于天池,黄欢,等.胆甾相液晶电控螺旋畸变导致的布拉格反射特性[J]. 光学学报, 2008, 28 (4):744-748. Fan Z X, Yu T C, Huang H, et al.Bragg reflection properties of electrically controlled helix distortion in cholesteric liquid crystals[J].Acta Optica Sinica,2008,28(4):744-748.(in Chinese)[11] 夏亮,徐琼,陆红波,等. 聚合物分散胆甾相液晶相形态调控与光电性能[J]. 液晶与显示, 2011,26(3):306-310. Xia L, Xu Q, Lu H B, et al.Controlling of phase morphlogies and electro-optical properties of polymer dispersed cholesteric liquid crystal[J].Chinese Journal of Liquid Crystals and Displays, 2011, 26 (3): 306-310.(in Chinese)[12] 原小涛,弓爱君,杨槐. 手征性向列相液晶复合体系的研究[J]. 液晶与显示, 2013,28(2):155-161. Yuan X T, Gong A J, Yang H. Helical twisting behavior of chiral nematic mesophase[J].Chinese Journal of Liquid Crystals and Displays,2013, 28(2):155-161.(in Chinese)

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Influence of the molecular structure of polyurethane acrylates on the morphology and properties of polymer dispersed liquid crystals

Influence of Liquid Crystal Contents and Concentrations of Initiator on Morphology and Electro-Optical Property of Polyurethane Acrylate PDLC Films

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

Effect of Low T_g Macro-RAFT-PBA on Morphology of Polymer Dispersed Liquid Crystals

Related Author

LU Hongbo

XU Miao

QIU Longzhen

WANG Han

MO Shunpin

WANG Yumeng

MA Li-lu-si

WANG Ying-han

Related Institution

College of Chemistry and Chemical Engineering， Hefei University of Technology

State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University

School of Materials Science and Engineering, University of Science and Technology Beijing

College of Engineering, Peking University

State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China, E-mail: wangyinghan@vip.sina.

AI问答

Address：No.3888 Dong Nanhu Road, Changchun, Jilin, China 130033 Postal code：130033
Tel：0431-86176059 Email：yjxs@ciomp.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 吉ICP备11002662号-17 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰