二苯乙烯类侧链的苯乙烯衍生物单体的合成及其荧光性能研究  

Study on Styrene Derivatives with Stilbene-Like Pendant:Synthesis and the Fluorescence Properties

作　　者：叶振兴[1] 夏雪伟[1] 路建美[1] 

机构地区：[1]苏州大学化学化工学院,江苏苏州215123

出　　处：《光谱学与光谱分析》2008年第9期2144-2147,共4页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(20476066);江苏省高技术研究项目(BG2005021)资助

摘　　要：用三苯基4-乙烯基苄基氯化季膦盐和三种芳醛的Wittig反应合成了具有二苯乙烯类侧链的三种苯乙烯衍生物:4-乙烯基二苯乙烯(VS),4’-N,N-二甲氨1基-4-乙烯基二苯乙烯(DMAVS)和4-(2-(9-蒽基))-乙烯基苯乙烯(AVS)。这三种物质都具有良好的光致发光性能,随取代基的不同,光致发光光谱的最大发射位置从375到530nm,强度也随着共轭程度的加大和推电子基团的引入而大幅度增强。A series of styrene derivatives with stilbene-like pendant were synthesized through heterogeneous Wittig reaction of triphenyl-（4-vinyl）-benzylphosphornium chloride with aromatic aldehydes. The substituted styrenic monomer, 4-（2-aryl）-vinyl-styrene, was strongly photoluminescent in solution and in solid state. Introduced electron-pushing substituents and lengthened conjugation both enhanced the emission intensity and led to a red shift of emission bands, with the maximum emission wavelength shifted from 378 to 494 nm. The fluorescece quantum efficiencies were determined by employing quinine sulfate as reference; and 4-（2-anthryl）-vinyl-styrene （AVS） possessed the highest quantum efficiency（λ=494 nm, Фf=0.635）.

关 键 词：荧光 WITTIG反应 二苯乙烯类侧链 

分 类 号：O621[理学—有机化学]