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研究了 3种非共轭PPV聚合物以及 3种共轭PPV衍生物的吸收谱和发光光谱的特性。非共轭PPV聚合物上的侧链烷氧基团有着很强的供电子能力 ,对调节非共轭聚合物能带带隙有重要的影响 ,且离主链较近的碳原子对能带结构也有一定的影响。但当侧链上的碳原子数量很大 ,从 7个小时一直变化到 1 0小时 ,共轭PPV衍生物的吸收光谱和发光光谱变化较少 ,表明对能带结构影响小
The absorption spectra and luminescence spectra of three unconjugated PPV polymers and three conjugated PPV derivatives were studied. Side chain alkoxy groups on non-conjugated PPV polymers have a strong electron-donating ability and have an important influence on the band gap adjustment of the non-conjugated polymer band gap. Structure also has a certain impact. However, when the number of carbon atoms in the side chain is very large and varies from 7 hours to 10 hours, there are few changes in the absorption and emission spectra of the conjugated PPV derivatives, indicating little effect on the band structure