Synthesis and surfactochromicity of 1,4-diketopyrrolo[3,4-c]pyrrole(DPP)-based anionic conjugated polyelectrolytes
作者:Haoyue Shen、Chun Kou、Min He、Han Yang、Kuan Liu
DOI:10.1002/pola.27062
日期:2014.3.15
(PVP) shows linear response. This result provides a controllable method to increase fluorescence intensity of dipyrrolopyrrole‐based conjugate polyelectrolytes in aqueous phase. The optical properties suggested that PSDPPPV and PSDPPPE which are negatively charged conjugated polymers can assemble with positively charged photovoltaic materials to form ionic photoactive layer. © 2013 Wiley Periodicals, Inc
通过Heck / Sonogashira偶联反应合成了两种新型的阴离子共轭共聚电解质PSDPPPV和PSDPPPE,并通过FT-IR,1表征1 H NMR,UV-vis和PL光谱。两种聚合物分别由2,5-二乙氧基-1,4-亚苯基亚乙炔基(DPV)和2,5-二乙氧基-1,4-亚苯基乙炔基(DPE)与1,4-二酮-2,5-双(4 -磺酰基丁基)-3,6-二苯基吡咯并[3,4-c]吡咯(SDPP)是一种新型的水溶性二酮吡咯并吡咯衍生物。PSDPPPV和PSDPPPE在可见光区域显示出较宽的吸收带,并且在水溶液中表现出较强的荧光猝灭作用。在阳离子表面活性剂或聚合物非离子表面活性剂的存在下,可以增强其水溶液的荧光。通过引入聚乙烯吡咯烷酮(PVP)增强荧光显示线性响应。该结果提供了一种可控制的方法来增加水相中基于二吡咯并吡咯的共轭聚电解质的荧光强度。光学性质表明,带负电的共轭聚合物PSDPPPV和PS