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Preparation, thermostability, and hydrophobic properties of T i O 2 /poly(dodecafluoroheptyl methacrylate) nanocomposites
Author(s) -
Xiao Zhenggang,
Guo Ping,
Sun Na
Publication year - 2017
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.44377
Subject(s) - thermostability , nanocomposite , contact angle , materials science , chemical engineering , scanning electron microscope , silane , wetting , methacrylate , polymer chemistry , microstructure , polymerization , polymer , composite material , chemistry , organic chemistry , engineering , enzyme
Poly(dodecafluoroheptyl methacrylate) (PDFMA)/titanium dioxide (TiO 2 ) nanocomposites with high TiO 2 content were successfully prepared by emulsion polymerization process. Before polymerization, nano‐TiO 2 was pretreated by silane coupling agent. Surface groups and composition of the modified nano‐TiO 2 were characterized by Fourier transform infrared and X‐ray photoelectron spectra. The microstructure of nanocomposites was observed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). In addition, the thermo‐stability and wetting behavior were also investigated in relation to the dosage of TiO 2 . The results showed that the thermostability is improved with the increment of TiO 2 content while hydrophilic properties exhibit nonlinear variation with the content of TiO 2 . The optimal percentage of TiO 2 content in the TiO 2 /PDFMA nanocomposites is 30% that could lead to the higher thermostability and hydrophobicity properties of composites. The maximum water contact angle (WCA) of nanocomposites can reach 120° ± 1°. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134 , 44377.