高等学校化学学报 ›› 2006, Vol. 27 ›› Issue (3): 589.

• 研究简报 • 上一篇    下一篇

交联PPE固态π-π堆积效应的研究

王文忠, 黄鹏程   

  1. 北京航空航天大学材料与工程学院高分子及复合材料系, 北京100083
  • 收稿日期:2005-02-22 出版日期:2006-03-10 发布日期:2006-03-10
  • 通讯作者: 黄鹏程(1944年出生), 男, 博士, 教授, 博士生导师, 从事功能高分子研究. E-mail: huangpc@buaa.edu.cn

Studies on Cross-linked PPE π-π Stack Effect in Solid State

WANG Wen-Zhong, HUANG Peng-Cheng*   

  1. Department of Polymer and Composites Materials, School of Materials Science and Engineering, Beihang University, Beijing 100083, China
  • Received:2005-02-22 Online:2006-03-10 Published:2006-03-10
  • Contact: HUANG Peng-Cheng,E-mail: huangpc@buaa.edu.cn

摘要:

本文合成了数种乙烯基封端及结构规整无侧基的PPE齐聚物, 通过端乙烯基的交联反应, 制备了柔性端基交联的三维PPE交联网络. 通过FTIR, PL, WXRD分析, 研究了乙烯基交联程度和热处理条件等对交联PPE π-π堆积效应的影响, 成功地制备了固态无π-π堆积和单色性好的紫/蓝光发光材料.

关键词: 对苯乙炔齐聚物; 交联; π-π堆积; 光致发光

Abstract:

We synthesized oligo(p-phenyleneethynylene)s and oligo(p-phenyleneethynylene)s end-capped by vinyl by Sonogashira cross\|coupling reaction. Then we prepared cross-linked PPE with or without residue vinyl by radical polymerization or heat curing at 175\_280 ℃ of vinyl\|functionalized olgomers. Having investigated cross-linked PPE and oligomers by FTIR, WXRD and photoluminescence, we found that cross-linked PPE without residual vinyl destroys the main chain π-π stacking completely in solid state. Moreover, the wavelength of the strongest emission of these cross-linked PPE varies from 310 nm to 390 nm, so they can be used as purple/blue light\|emitting materials.

Key words: Oligo(p\, phenyleneethynylene); Cross-linking; π-π stack; Photoluminescence

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