229494-69-3Relevant academic research and scientific papers
Novel isoindigo-based conjugated polyelectrolytes: Synthesis and fluorescence quenching behavior with water-soluble poly(p-phenylenevinylene)s
Kou, Chun,He, Xiaolong,Jiang, Xueyu,Ni, Yifeng,Liu, Ling,Huangfu, Changxin,Liu, Kuan
, p. 2223 - 2237 (2015)
Two novel ID-based water-soluble conjugated polymers (+)-PIDPV and (-)-PIDPV were synthesized by Heck coupling reaction. These two polyelectrolytes are both consisted of isoindigo units and phenylenevinylene units. In the UV-vis absorption spectra, both (+)-PIDPV and (-)-PIDPV exhibit broad absorption bands that almost cover the whole visible region. Photophysical investigations reveal that the fluorescence of water-soluble PPV can be efficiently quenched by oppositely charged PIDPV at a very low concentration. Cationic PPV shows an efficient quenching effect with ΚSV = 1.01 × 106 M-1 in the presence of (-)-PIDPV while the anionic PPV gives a lager quenching constant with ΚSV = 1.71 × 106 M-1 in the presence of (+)-PIDPV. Furthermore, the blend films of water-soluble PPVs and oppositely charged PIDPV also exhibit excellent quenching effect. These properties suggest that (+)-PIDPV and (-)-PIDPV are promising materials in the application of ionic photoactive layer in the organic solar cells.
