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A series of AIE-active amphiphilic copolymers, PNMPx-b-P(LMAy-co-TPEz), were developed as bioimaging probes. Converse transitions from spherical micelles to vesicles via wormlike micelles of them in water and n-dodecane were happened, respectively.

Two novel ID-based water-soluble conjugated polymers (1)-PIDPV and (2)-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 (1)-PIDPV and (2)-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 K SV 5 1.01 3 10 6 M 21 in the presence of (2)-PIDPV while the anionic PPV gives a lager quenching constant with K SV 5 1.71 3 10 6 M 21 in the presence of (1)-PIDPV. Furthermore, the blend films of watersoluble PPVs and oppositely charged PIDPV also exhibit excellent quenching effect. These properties suggest that (1)-PIDPV and (2)-PIDPV are promising materials in the application of ionic photoactive layer in the organic solar cells.

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