中华医学超声杂志

应用化学 ›› 2010, Vol. 27 ›› Issue (07): 773-777.DOI: 10.3724/SP.J.1095.2010.90712

• 研究论文 • 上一篇    下一篇

聚合物分散液晶单体4,4'-二[6-(丙烯酰氧基)己氧基]联苯的合成

常会1,范华乐1,任凤梅1,陆红波2,周正发1,2,徐卫兵1,2*   

  1. (1.合肥工业大学高分子科学与工程系 合肥 230009；2.特种显示技术教育部重点实验室 合肥 230009)
  • 收稿日期:2009-10-30 修回日期:2010-01-15 出版日期:2010-07-10 发布日期:2010-07-10
  • 通讯作者: 徐卫兵，男，教授，博士生导师; E-mail:xwb105105@sina.com; 研究方向：聚合物基功能材料
  • 基金资助:
    特种显示教育部重点实验室开放课题

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-Fa1,2, XU Wei-Bing1,2*   

  1. (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

PDF

2305

被引次数

8

摘要：

利用丙烯酰氯代替丙烯酸钾与4,4′-二(6-溴己氧基)联苯反应改进了制备4,4′-二[6-(丙烯酰氧基)己氧基]联苯(BAB6)的合成路线。 改进前的反应温度较高，中间产物溶解度小，产物呈淡黄色，收率仅12.4%；改进后在室温反应，中间产物溶解度较高，产物呈白色，收率达到46.8%。 采用1H NMR、13C NMR和元素分析对中间体和BAB6结构进行了表征。 由改进后合成的单体，制备了具有快速响应的聚合物分散液晶（PDLC）膜，响应时间约2 ms。 扫描电子显微镜观察的结果表明，PDLC中形成了聚合物网络结构。

关键词: 二[(丙烯酰氧基)己氧基]联苯, 单体, 酯化, 聚合物分散液晶

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

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