title: A facile photopolymerization method for fabrication of pH and light dual reversible stimuli-responsive surfaces.
abstract: Dual reversible surfaces with pH and light responsive properties were prepared via two-stage photopolymerization by grafting dimethylaminoethyl methacrylate (DMAEMA) and 2-methyl-4-phenylazo acrylate (MPA-Azo) on a substrate. The wettability of the modified surface could be reversibly controlled because of the protonation and deprotonation of DMAEMA at different pH values and the photoisomerization of MPA-Azo under UV irradiation at different wavelengths. This facile two-stage photopolymerization method has potential applications in fabrication of various external stimuli-responsive surfaces in the future.
authors.affiliation: State Key Laboratory of Chemical Resource Engineering & Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, P. R. China. niejun@mail.buct.edu.cn zhuxq@mail.buct.edu.cn.
authors.forename: Shaopeng
authors.initials: S
authors.lastname: Wu
authors.forename: Xiaoqun
authors.initials: X
authors.lastname: Zhu
authors.forename: Jinliang
authors.initials: J
authors.lastname: Yang
authors.forename: Jun
authors.initials: J
authors.lastname: Nie
mesh_terms: D000179:Acrylates / Q000138:chemical synthesis* / Q000737:chemistry; D001391:Azo Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D008689:Methacrylates / Q000138:chemical synthesis* / Q000737:chemistry; D015394:Molecular Structure; D055668:Photochemical Processes; D058105:Polymerization; D013499:Surface Properties; D014466:Ultraviolet Rays
chemical_list: D000179:Acrylates; D001391:Azo Compounds; D008689:Methacrylates; C049840:2-(dimethylamino)ethyl methacrylate