影像科学与光化学 ›› 2007, Vol. 25 ›› Issue (5): 327-332.DOI: 10.7517/j.issn.1674-0475.2007.05.327

• 研究快讯 • 上一篇    下一篇

高热稳定性和可逆交联性质的含新型偶氮发色团电光聚合物的研究

王志鹏1,2, 薄淑晖1,2, 赵文轲1,2, 刘家磊1,2, 王建设1,2, 邱玲1, 甄珍1, 刘新厚1   

  1. 1. 中国科学院, 理化技术研究所, 有机光电功能材料和分子工程实验室, 北京, 100080;
    2. 中国科学院, 研究生院, 北京, 100049
  • 收稿日期:2007-05-28 修回日期:2007-06-01 出版日期:2007-09-23 发布日期:2007-09-23
  • 通讯作者: 刘新厚,E-mail:xhliu@mail.ipc.ac.cn
  • 基金资助:

    中国科学院知识创新工程项目

Thermal Stable Retro-Crosslinking Polymers Based on "Diels-Alder" Reaction which Containing a New AZO Chromophore

WANG Zhi-peng1,2, BO Shu-hui1,2, ZHAO Wen-ke1,2, LIU Jia-lei1,2, WANG Jian-she1,2, QIU Lin1, ZHEN Zhen1, LIU Xin-hou1   

  1. 1. Laboratory of Organic Optoelectronic Functional Materials and Molecular Engineering, TechnicalInstitute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100080, P. R. China;
    2. Graduated University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
  • Received:2007-05-28 Revised:2007-06-01 Online:2007-09-23 Published:2007-09-23

摘要: 制备了两种新型的分别含有以三苯胺为电子给体的偶氮类发色团作为特征活性官能团和3-呋喃甲酸及受保护的马来酰亚胺的可交联型聚合物体系.通过研究表明利用该制备方法,发色团在聚合物中的含量得到了极大的提高,分别达到32.1 %(NLO1-P1)和44.4 %(NLO1-P2).该聚合物体系以"Diels-Alder"[4 + 2]环加成反应作为其交联特征,具有高温非交联、低温交联的特点,其过程与以往的热交联型聚合物相反,可解决传统电光交联聚合物中存在的热交联对极化效率影响的问题并用热失重分析法(TGA)和差示扫描量热法(DSC)分析了这一过程.此外DA交联型聚合物,不需要引入额外的助交联剂,克服了传统热交联聚合物分离难的问题,最大程度的保证了材料的纯度.

关键词: 发色团, 电光材料, 二阶非线性, 交联聚合物

Abstract: Polymers NLO1-P1 and NLO1-P2 containing the new azo chromophore were designed and prepared, which possess crosslinking ability through retro-"Diels-Alder" and "Diels-Alder" reaction. Because the crosslinking groups of furan-capped maleimide and furan-3-carboxylic acid were designed covalently attaching to the two kinds of polymers NLO1-P1 and NLO1-P2, respectively, the chromophore content in the polymers were greatly increased (32.1% in NLO1-P1 and 44.4% in NLO1-P2).These polymer systems were crosslinking in low temperature (below 70 ℃) and non-crosslinking in high temperature (about 150 ℃). The crosslinking characteristic could resolve the problem "nonlinearity-stability tradeoff" which consists in the traditional crosslinking electro-optic polymer.The thermal stability and thermal reversible character of the network polymer were confirmed through thermal gravimetric analysis (TGA) and differential scanning calorimeter (DSC).

Key words: chromophore, electro-optic materials, second-order nonlinearity, crosslinkingpolymer

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