通过＂Click＂反应合成了几种含芴单元的共轭聚合物。以芴为起始原料,合成了N3-Ar-N3和C≡C-Ar-C≡C类单体,分别以N,N-二甲基甲酰胺（DMF）和四氢呋喃（THF）为反应溶剂,通过Cu＋催化得到聚合物。芴单元具有良好的溶解性和发光效率。＂Click＂反应合成的含芴单元共轭聚合物在溶液中发射蓝光,在薄膜中也有一定的荧光发射。文中以不同浓度的聚合物和聚苯乙烯（PS）共混甩膜,研究聚集对发光性能的影响。新合成的聚合物具有良好的热稳定性,热分解温度在300℃以上;差示扫描量热分析（DSC）结果显示,线性聚合物在300℃以内没有明显的相转变,保持一种稳定的无定型态,对于提高材料的发光效率是有利的。
A series of conjugated polymers containing fluorene units were synthesized by ＂Click＂ chemistry.The monomers of N3-Ar-N3 and C≡C-Ar-C≡C were synthesized with fluorone as raw material,the polymerization was carried out through Cu＋ catalysis in solvent dimethylformamide（DMF） and tetrahydrofuran（THF）.High molecular weight polymers were easily obtained due to the introduction of easily soluble fluorene.Most polymer prepared ＂Click＂ chemistry was nonfluorescent in the solid state,owing to the polymer luminescence was quenched by aggregate formation.The conjugated polymers containing fluorene units emitted blue light,furthermore the film of the polymer was fluorescent.To detect the influence caused by aggregation,the blend films of the polymer and polystyrene（PS） were prepared by spin coating.The newly synthesized polymer was stable,The decomposition temperature is above 300 ℃.DSC result shows that linear polymer does not have an obvious phase transition under 300 ℃,indicating polymer forming amorphous films.
参考文献
| [1] | Hartmuth C. Kolb;K. Barry Sharpless .Click chemistry: diverse chemical function from a few good reactions[J].Angewandte Chemie International Edition,2001(11):2004-2021. |
| [2] | Kolb HC;Sharpless KB .The growing impact of click chemistry on drug discovery.[J].Drug discovery today,2003(24):1128-1137. |
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