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Fabricating Reactive Surfaces with Brush-like and Crosslinked Films of Azlactone-Functionalized Block Co-Polymers
Published on: June 30, 2018
A facile photopolymerization method for fabrication of pH and light dual reversible stimuli-responsive surfaces
Shaopeng Wu1, Xiaoqun Zhu, Jinliang Yang
1State 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.
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.

