Influence of Matrix Glass Transition Temperature on the Memory Effect of Polymer-Dispersed Liquid Crystals

被引：12
作者：
Du, Xin [1 ]
Yan, Bin [1 ]
Wang, Yinghan [1 ]
机构：
[1] Sichuan Univ, Coll Polymer Sci & Engn, State Key Lab Polymer Mat Engn, Chengdu 610065, Peoples R China
来源：
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 2010年 / 48卷 / 06期
关键词：
glass transition; glass transition temperature; macroinitiator; memory effect; PDLC; phase separation; reversible addition fragmentation chain transfer (RAFT); STATES;
D O I：
10.1002/polb.21946
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
In this article, macroinitiators with different glass transition temperature (T-g) were synthesized by reversible additional-fragmental chain transfer polymerization, and used to prepare polymer-dispersed liquid crystals (PDLCs) with methyl acrylate. The memory effect of these PDLCs was investigated. The results showed that remarkable memory effect exhibit only in PDLCs with high and low T-g block chain. The possible mechanism responsible for the behavior is sketched. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 48: 729-732, 2010
引用
收藏
页码：729 / 732
页数：4
相关论文
共 17 条
  • [1] Polymer-dispersed liquid crystals: Preparation, operation and application
    Bouteiller, L
    LeBarny, P
    [J]. LIQUID CRYSTALS, 1996, 21 (02) : 157 - 174
  • [2] Cupelli D, 2002, MOL CRYST LIQ CRYST, V372, P255
  • [3] Surface anchoring, polarization fields and memory states in polymer dispersed liquid crystals
    Cupelli, D
    Macchione, M
    Nicoletta, FP
    De Filpo, G
    Chidichimo, G
    [J]. LIQUID CRYSTALS, 2001, 28 (02) : 287 - 290
  • [4] Drzaic P.S., 1995, LIQUID CRYSTAL DISPE, P1
  • [5] Du X., J APPL POLYM S UNPUB
  • [6] Han JW, 2006, J KOREAN PHYS SOC, V49, P1482
  • [7] RAFT copolymerization as a means to enhance the electro-optical performance of polymer dispersed liquid crystal films
    He, Jie
    Yan, Bin
    Wang, Shoulian
    Yu, Binyu
    Wang, Xiaoan
    Wang, Yinghan
    [J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2007, 45 (17) : 4144 - 4149
  • [8] The effect of molecular weight of polymer matrix on properties of polymer-dispersed liquid crystals
    He, Jie
    Yan, Bin
    Yu, Binyu
    Wang, Shoulian
    Zeng, Yu
    Wang, Yinghan
    [J]. EUROPEAN POLYMER JOURNAL, 2007, 43 (06) : 2745 - 2749
  • [9] Functional polymers from novel carboxyl-terminated trithiocarbonates as highly efficient RAFT agents
    Lai, JT
    Filla, D
    Shea, R
    [J]. MACROMOLECULES, 2002, 35 (18) : 6754 - 6756
  • [10] High memory effects in polymer dispersed chiral liquid crystals with negative dielectric anisotropy
    Magnaldo, A
    Nourry, J
    Sixou, P
    [J]. JOURNAL OF APPLIED PHYSICS, 1996, 79 (11) : 8193 - 8196
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