alkyl groups. The polymer films exhibit right‐ or left‐handed circularly polarized fluorescence (CPF) and also show reversible quenching and emitting behaviors as a result of photochemical isomerization of the dithienylethene moiety upon irradiation with ultraviolet and visible light. This is the first report realizing the reversible switching of CPF using chirality and photoresponsive properties.
新颖的多官能共轭聚合物,[聚(p亚苯基)和聚(bithienylene亚苯基)S采用(- [R )-和(小号)-configurations],其具有荧光,手性,和光响应特性,已设计并合成的。聚合物由π共轭主链组成,其中poly(p-亚苯基)和聚(亚苯基-亚苯基)是荧光部分,光致变色二
噻吩基
乙烯部分的侧链与手性烷基相连。聚合物薄膜表现出右旋或左旋圆偏振荧光(CPF),并且由于二
噻吩乙烯乙烯部分在紫外和可见光照射下发生光
化学异构化,还表现出可逆的猝灭和发射行为。这是第一个利用手性和光响应特性实现CPF可逆转换的报告。