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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis and fluorescence in solution of polybenzimidazolylphenylenephthalamides
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Synthesis and fluorescence in solution of polybenzimidazolylphenylenephthalamides

机译：聚苯并咪唑基亚苯基苯二甲酰胺的溶液合成及荧光

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摘要

Six polybenzimidazolylphenylenephthalamides (PBIPPA), two meta/para isomers, and four meta/para isomers that had different distances between a benzimidazolyl and the adjacent benzimidazolyl in a polymer chain were synthesized. They were soluble in N,N-dimethylacetamide. In addition to the fluorescence from the pi --> pi* transition of isolated phenylbenzimidazole, a fluorescence from a chromophore complex in the grand state appeared in the fluorescence spectra, which was observed at higher concentrations. The concentration dependence of the intensity of the fluorescence was investigated in order to learn whether the chromophore complex was intermolecular or intramolecular. It was concluded that the chromophore complex is intramolecular, a conclusion supported by the viscometric results. (C) 2003 Wiley Periodicals, Inc. [References: 17]
机译：合成了六个苯并咪唑基亚苯基苯二甲酰胺（PBIPPA），两个间位/对位异构体和四个间位/对位异构体，它们在聚合物链中的苯并咪唑基和相邻的苯并咪唑基之间的距离不同。它们可溶于N，N-二甲基乙酰胺。除了从分离的苯基苯并咪唑的pi-> pi *跃迁发出的荧光外，在荧光光谱中还出现了处于大状态的发色团配合物发出的荧光，在较高浓度下观察到。为了研究生色团复合物是分子间还是分子内，研究了荧光强度的浓度依赖性。结论是生色团配合物是分子内的，这一结论得到了粘度测定结果的支持。 （C）2003 Wiley Periodicals，Inc. [参考：17]

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