Synthesis and Luminescent Studies of Poly(phenylenevinylene)s Containing a Biphenyl Moiety
作者:Ananda M. Sarker、Liming Ding、Paul M. Lahti、Frank E. Karasz
DOI:10.1021/ma011269l
日期:2002.1.1
The polymers discussed in this contribution consist of phenylenevinylene chromophores linked together across flexible biphenyl “hinges” to shorten the effective conjugation length and to give sufficiently twisted structures that interchain aggregation is limited or prevented. They are poly[(2,5-dihexyloxy-p-phenylenevinylene)-alt-(4,4‘-dihexyloxy-3,3‘-biphenylenevinylene)] (1), poly[(2,5-dihexylox
在该贡献中讨论的聚合物由横跨柔性联苯“铰链”连接在一起的亚苯基亚乙烯基生色团组成,以缩短有效缀合长度并提供足够扭曲的结构,从而限制或防止链间聚集。它们是聚[(2,5- dihexyloxy- p -phenylenevinylene) - ALT - (4,4'-二己基-3,3'- biphenylenevinylene)](1),聚[(2,5- dihexyloxy- p -phenylenevinylene ) - ALT - (2,2'-二己基-3,3'- biphenylenevinylene)](2),和聚[(2,5- dihexyloxy- p -phenylenevinylene) - ALT - (2,2'- biphenylenevinylene)] (3)。在稀溶液和固体状态的吸收光谱是非常类似的1 - 3,与缺少的在它们的基电子态聚集效应是一致的。相对于稀溶液相光谱,