文章摘要
具有聚集诱导发光性能的三苯甲醇侧基聚合物的制备及性能
Synthesis and Properties of Aggregation-Induced-Emission Polymer with Pendant Triphenylmethanol Groups
  
DOI:10.16865/j.cnki.1000-7555.2019.0333
中文关键词: 聚集诱导发光  乙烯基三苯甲醇  聚(三苯甲醇)乙烯  激基缔合物
英文关键词: aggregation-induced luminescence  vinyl triphenylmethanol  poly(vinyl triphenylmethanol)  excimer
基金项目:国家科技重大专项课题(05Z12100010)
作者单位
张晓云1,贾会坤1,叶 帆1,刘江辉1,张兆丽2,吴 伟2 1. 中国石油大学(华东) 材料科学与工程学院
2. 中国石油大学(华东) 理学院山东 青岛 266580 
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中文摘要:
      通过Barbier反应合成了乙烯基三苯甲醇,其具有聚集诱导发光(AIE)现象;通过可逆加成-链转移(RAFT)聚合的方法将乙烯基三苯甲醇聚合得到不同相对分子质量的聚(三苯甲醇)乙烯。发现该聚合物表现出不同于小分子的AIE特性,在常温固态或溶液状态下均不产生荧光,但加热至玻璃化转变温度之后,聚合物固体的荧光发射强度明显增强,在溶液中依然不产生荧光。文中针对其特殊发光现象及发光机理进行了初步探究,通过核磁共振氢谱、红外光谱、X射线衍射与热力学表征发现其荧光的变化与激基缔合物有关。
英文摘要:
      Vinyl triphenyl methanol was synthesized by Barbier reaction, which shows aggregation-induced-emission (AIE) phenomenon. The polymers with different molecular weights were produced through reversible addition-chain transfer (RAFT) polymerization of vinyl triphenyl methanol. It is found that the polymer exhibit different AIE properties from its monomer and has no fluorescence at room temperature in both solid and solution states. However, after heating to its glass transition temperature, the fluorescence emission intensity of the solid polymer is significantly enhanced, and there is still no fluorescence in the polymer solution. In this paper, the special luminescence phenomenon and luminescence mechanism of the polymer were investigated. It is revealed that the fluorescence changes are related to the polymeric excimers by the characterization of NMR, IR, X-ray diffraction and thermodynamics.
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