Synthesis and photophysical properties of poly(aryleneethynylene)s bearing dialkylsilyl side substituents
作者： Lei Fang , Ying Li , Rui Wang , Caihong Xu , Shuhong Li
DOI: 10.1016/J.EURPOLYMJ.2009.01.010
关键词:
摘要: A series of poly(aryleneethynylene)s bearing dialkylsilyl (–SiR2H) side substituents has been synthesized by Sonogashira cross-coupling reactions 1,4-diethynyl-2,5-bis(dialkylsilyl)benzene and diiodoarylene compounds. Their photophysical properties in solution have studied. All the polymers showed intense fluorescence with high quantum yield. Compared their analogues containing para-phenylene units, meta-phenylene units main chain absorption emission maxima at shorter wavelengths, whereas having thiophenylene backbones bathochromically shifted spectra. For same conjugated parent backbone, silyl found to exert negligible effect on properties.
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