Ultralarge Nanosheets Fabricated by the Hierarchical Self-Assembly of Porphyrin-Ended Hyperbranched Poly (ether amine) (TPP-hPEA).

摘要: An ultralarge sheet with remarkable lateral dimensions of 10 µm × µm-20 20 is fabricated by the hierarchical self-assembly porphyrin-ended hyperbranched poly(ether amine) (tetraphenylporphyrin (TPP)-hPEA) in solution. The obtained TPP-hPEA amphiphiles can self-assemble from ultrathin single-layered nanosheets a thickness 4 nm to multilayered thicknesses 30 70 nm. increase 2 5 µm, and eventually µm. In-situ dynamic light scattering UV-vis spectroscopy studies suggest growth mechanism process that relies on π-π stacking. This 2D method provides significant potential guide for preparation