交联PPE固态π-π堆积效应的研究  

Studies on Cross-linked PPE π-π Stack Effect in Solid State

作　　者：王文忠[1] 黄鹏程[1] 

机构地区：[1]北京航空航天大学材料与工程学院高分子及复合材料系,北京100083

出　　处：《高等学校化学学报》2006年第3期589-591,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:29974002)资助.

摘　　要：We synthesized oligo（p-phenyleneethynylene）s and oligo（p-phenyleneethynylene）s end-capped by vinyl by Sonogashira cross-coupling reaction. Then we prepared cross-linked PPE with or without residue vinyl by radical polymerization or heat curing at 175280 ℃ of vinyl-functionalized olgomers. Having investigated cross-linked PPE and oligomers by FTIR, WXRD and photoluminescence, we found that cross-linked PPE without residual vinyl destroys the main chain π-π stacking completely in solid state. Moreover, the wavelength of the strongest emission of these cross-linked PPE varies from 310 nm to 390 nm, so they can be used as purple/blue light-emitting materials.We synthesized oligo（p-phenyleneethynylene）s and oligo（p-phenyleneethynylene ）s end-capped by vinyl by Sonogashira cross-coupling reaction. Then we prepared cross-linked PPE with or without residue vinyl by radical polymerization or heat curing at 175--280 ℃ of vinyl-functionalized olgomers. Having investigated cross-linked PPE and oligomers by FTIR,WXRD and photoluminescence,we found that cross-linked PPE without residual vinyl destroys the main chain π-π stacking completely in solid state. Moreover, the wavelength of the strongest emission of these cross-linked PPE varies from 310 nm to 390 nm, so they can be used as purple/blue light-emitting materials.

关 键 词：对苯乙炔齐聚物 交联 Π-Π堆积 光致发光 

分 类 号：O631[理学—高分子化学]