Polymer brushes on planar TiO2 substrates.
A facile and universal method is presented for the preparation of polymer brushes on amorphous TiO2 film. Homogeneous and stable poly(methyl methacrylate), polystyrene, poly(4-vinylpyridine), and poly(N-vinyl imidazole) (PNVI) brushes up to 550 nm are directly created onto TiO2 via UV-induced photopolymerization of corresponding monomers. Kinetic studies reveal a linear increase in thickness with the polymerization time. Characterization of the resulting polymer brushes by FTIR spectroscopy, X-ray photoelectron spectroscopy, contact angle, and atomic force microscopy (AFM) indicates an efficient UV-grafting reaction. Finally, we have demonstrated the possibility in converting the PNVI brushes to poly(vinyl imidazolium bromide), i.e., poly(ionic liquid) brushes by polymer-analogous reactions.
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.
Jiming
J
Yang
Liman
L
Hou
Bin
B
Xu
Ning
N
Zhang
Yongjiu
Y
Liang
Wenjing
W
Tian
Dewen
D
Dong
D007700:Kinetics; D018625:Microscopy, Atomic Force; D056951:Photoelectron Spectroscopy; D058105:Polymerization; D011108:Polymers / Q000737:chemistry*; D019904:Polymethyl Methacrylate / Q000737:chemistry; D011137:Polystyrenes / Q000737:chemistry; D011145:Polyvinyls / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D014025:Titanium / Q000737:chemistry*; D014466:Ultraviolet Rays
D011108:Polymers; D011137:Polystyrenes; D011145:Polyvinyls; C009495:titanium dioxide; C019535:poly(4-vinylpyridine); D019904:Polymethyl Methacrylate; D014025:Titanium
SIPGP; TiO2; poly(ionic liquid) brushes; polymer brushes; polymer-analogous reactions