【摘要】 以Ｗｉｔｉｇ反应的方法，分别合成了五种聚对苯撑乙烯（ＰＰＶ）齐聚物，并用红外光谱、核磁共振、紫外可见光谱及荧光光谱对所得齐聚物进行了测试和表征，发现它们的溶解性都有所改善，紫外可见光谱均向红移。更多还原

【Abstract】 Five poly(phenylene vinylene)’s oligomers, PPPN,OMePPV,2,4OMePPV, OEtPPV and NO2PPV were synthesized by Wittig reaction and characterized by 1HNMR, FTIR, UVvis absorption and fluorescence spectra respectively. The results showed that the solubility were improved and the maximum position of absorption in UVvis and emission spectra of all oligomers were shifted to longer wavelength.更多还原