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Ultralarge Nanosheets Fabricated by the Hierarchical Self‐Assembly of Porphyrin‐Ended Hyperbranched Poly (ether amine) (TPP–hPEA)
Author(s) -
Wang Ruiqing,
Tao Tao,
Su Zhilong,
Ma Xiaodong,
Jiang Xuesong,
Xu Hongjie,
Yin Jie
Publication year - 2018
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201800042
Subject(s) - porphyrin , materials science , tetraphenylporphyrin , self assembly , stacking , ether , dynamic light scattering , amphiphile , amine gas treating , polymer chemistry , nanostructure , chemical engineering , copolymer , polymer , nanotechnology , nanoparticle , photochemistry , chemistry , composite material , organic chemistry , engineering
An ultralarge sheet with remarkable lateral dimensions of 10 µm × 10 µm–20 µm × 20 µm is fabricated by the hierarchical self‐assembly of porphyrin‐ended hyperbranched poly(ether amine) (tetraphenylporphyrin (TPP)–hPEA) in solution. The obtained TPP–hPEA amphiphiles can self‐assemble from ultrathin single‐layered nanosheets with a thickness of 4 nm to ultralarge multilayered nanosheets with thicknesses from 30 to 70 nm. The lateral dimensions increase from 2 × 2 µm to 5 × 5 µm, and eventually to 10 × 10 µm. In‐situ dynamic light scattering and UV–vis spectroscopy studies suggest a hierarchical growth self‐assembly mechanism with a self‐assembly process that relies on π–π stacking. This 2D self‐assembly method provides a significant potential guide for the preparation of ultralarge nanosheets in solution.