Synthesis of Polymer Dispersed Liquid Crystal Monomer 4,4'-Bis[6-(acryloyloxy)hexyloxy]biphenyl

doi:10.3724/SP.J.1095.2010.90712

Chinese Journal of Applied Chemistry ›› 2010, Vol. 27 ›› Issue (07): 773-777.DOI: 10.3724/SP.J.1095.2010.90712

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Synthesis of Polymer Dispersed Liquid Crystal Monomer 4,4'-Bis[6-(acryloyloxy)hexyloxy]biphenyl

CHANG Hui¹, FAN Hua-Le¹, REN Feng-Mei¹, LU Hong-Bo², ZHOU Zheng-Fa^1,2, XU Wei-Bing^1,2*

(1.Department of Polymer Science and Engineering,Hefei University of Technology,Hefei 230009;
2.Key Laboratory of Special Display Technology,Ministry of Education,Hefei 230009)

Received:2009-10-30 Revised:2010-01-15 Published:2010-07-10 Online:2010-07-10
Contact: Hui CHANG

Abstract

Abstract:

A mesogenic diacrylate monomer 4,4′-bis[6-(acryloyloxy)hexyloxy]biphenyl(BAB6) was synthesized by two routes. The improved method was from the modified traditional method by substituting 4,4′-bis[6-(bromo)hexyloxy]biphenyl with 4,4′-bis[6-(hydroxyl)hexyloxy]biphenyl to react with acryloyl chloride instead of potassium acrylate. Compared with the traditional method, the reaction temperature was lowered, the solubility of intermediate products was improved and the yield was increased from 12.4% to 46.8%. BAB6 was characterized by ¹H NMR, ¹³C NMR and elemental analysis. A fast response polymer dispersed liquid crystal(PDLC) film was casted using BAB6 as the monomer, and the response time was about 2 ms. In addition, the morphology of the polymer network was investigated by SEM.

Key words: bis[(acryloyloxy)hexyloxy]biphenyl, monomer, esterification, PDLC

CLC Number:

O632.5

CHANG Hui1, FAN Hua-Le1, REN Feng-Mei1, LU Hong-Bo2, ZHOU Zheng-Fa1,2, XU Wei-Bing1,2*. Synthesis of Polymer Dispersed Liquid Crystal Monomer 4,4'-Bis[6-(acryloyloxy)hexyloxy]biphenyl[J]. Chinese Journal of Applied Chemistry, 2010, 27(07): 773-777.

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Synthesis of Polymer Dispersed Liquid Crystal Monomer 4,4'-Bis[6-(acryloyloxy)hexyloxy]biphenyl

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