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    Regulation of Supramolecular Chirality in Co-Assembled Polydiacetylene LB Films with Removable Azobenzene Derivatives

    Year: 2012

    Journal: Macromol. Rapid Commun., 2012, 33 (9), 773-778, 20131009

    Authors: Hao Jiang, Xin Chen, Xiujuan Pan, Gang Zou, Qijin Zhang

    Organizations: CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, Key Laboratory of Optoelectronic Science and Technology in Anhui Province, University of Science and Technology of China, Hefei, Anhui 230026, China; CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, Key Laboratory of Optoelectronic Science and Technology in Anhui Province, University of Science and Technology of China, Hefei, Anhui 230026, China

    Herein, we report a novel model that combines supramolecular chemistry and the LB technique for the chirality regulation of the PDA films. The helical packing of PCDA molecules and the chiroptical properties of the resulting PDA LB films can be easily modulated by different azobenzene derivatives. Moreover, the effect of the photo-isomerization of azobenzene chromophores on the helical formation of PCDA assemblies is investigated in detail.