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有机化学
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有机化学 ›› 2011, Vol. 31 ›› Issue (01): 82-86. 上一篇    下一篇

研究论文

新型超支化荧光聚合物的合成及光物理性质

闾新明，钱鹰   

  1. (东南大学化学化工学院 南京 211189)
  • 收稿日期:2010-02-22 修回日期:2010-07-12 发布日期:2010-08-17
  • 通讯作者: 钱鹰 E-mail:yingqian@seu.edu.cn
  • 基金资助:

    双光子荧光材料

Synthesis and Photophysical Properties of a Novel Hyperbranched Fluorescence Polymer

LV Xin-Ming , QIAN Ying   

  1. (School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189)
  • Received:2010-02-22 Revised:2010-07-12 Published:2010-08-17
  • Contact: QIAN Ying E-mail:yingqian@seu.edu.cn

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被引次数

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通过Wittig法合成了一种新型三苯胺-噁二唑超支化共轭聚合物HPTPA-OXD, 通过IR, 1H NMR, 凝胶渗透色谱(GPC)等对其结构进行了表征. 测定了HPTPA-OXD在不同溶剂中的紫外吸收光谱、荧光光谱、荧光寿命及量子产率. HPTPA-OXD在甲苯, CHCl3, THF, CH2Cl2, DMF溶液中的荧光发射峰分别为473, 497, 507, 522和547 nm, 在CH2Cl2, 甲苯和THF中量子产率分别为0.33, 0.31和0.18, 在THF, CH2Cl2, DMF中的荧光寿命分别为1.24, 1.39和1.14 ns. 电化学性能用循环伏安法测定, 超支化荧光聚合物HPTPA-OXD的HOMO和LUMO能级分别为－4.91和－2.44 eV. HPTPA-OXD的分解温度为440 ℃, 热稳定性良好.

关键词: 超支化荧光聚合物, Wittig 反应, 荧光性质, 荧光寿命, 溶剂效应, 热稳定性, 电化学性质

A novel hyperbranched fluorecence polymer (HPTPA-OXD) containing triphenyamine and 1,3,4-oxadiazole was synthesized by the Wittig reaction. The structure of the polymer was characterized by IR, 1H NMR and GPC (gel permeation chromatography). The photophysical properties including UV-vis spectra, fluorescence spectra, and fluorescence lifetime were investigated. The maximum emission wavelengths were 473, 497, 507, 522 and 547 nm in toluene, CHCl3, THF, CH2Cl2 and DMF respectively, and the fluorecence lifetime were 1.24, 1.39 and 1.14 ns in THF, CH2Cl2 and DMF respectively. The electrochemical properties was explored by cyclic voltammetry, the HOMO and LUMO energy level of the hyperbranched fluorecence polymer HPTPA-OXD was －4.91 and －2.44 eV, respectively. The polymer HPTPA-OXD showed decomposition temperature 440 ℃ and exhibited good thermal stabilities.

Key words: hyperbranched fluorecence polymer, Wittig reaction, fluorecence property, fluorecence lifetime, solvato-chromic effect, thermal stability, electrochemical property