title: Regulation of supramolecular chirality in co-assembled polydiacetylene LB films with removable azobenzene derivatives.
abstract: 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.
authors.affiliation: 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, P R China.
authors.forename: Hao
authors.initials: H
authors.lastname: Jiang
authors.forename: Xin
authors.initials: X
authors.lastname: Chen
authors.forename: Xiujuan
authors.initials: X
authors.lastname: Pan
authors.forename: Gang
authors.initials: G
authors.lastname: Zou
authors.forename: Qijin
authors.initials: Q
authors.lastname: Zhang
mesh_terms: D001391:Azo Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D002942:Circular Dichroism; D006860:Hydrogen Bonding; D008958:Models, Molecular; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry / Q000648:ultrastructure; D000078789:Polyacetylene Polymer; D011091:Polyesters / Q000737:chemistry; D058105:Polymerization; D011108:Polymers / Q000737:chemistry*; D053279:Polyynes / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013237:Stereoisomerism
chemical_list: D001391:Azo Compounds; D000078789:Polyacetylene Polymer; D011091:Polyesters; D011108:Polymers; C500738:poly(10,12-pentacosadiynoic acid); D053279:Polyynes; C082361:polydiacetylene; C009850:azobenzene