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Template-assisted hydrophobic porous silica membrane: A purifier sieve for organic solvents.
- Source :
- Journal of Applied Polymer Science; 2/15/2018, Vol. 135 Issue 7, pn/a-1, 7p
- Publication Year :
- 2018
-
Abstract
- ABSTRACT Self-supporting, interconnected, porous inorganic (silicon/carbon) membranes were obtained by the calcination of composite membranes at 900 °C with a porous polymer template obtained by binary-phase solid-state photopolymerization at −60 °C with acrylate monomers followed by chemical vapor deposition. The physicochemical properties of all of the membranes were characterized by scanning electron microscopy, energy-dispersive spectroscopy (EDS), Fourier transform infrared (FTIR) spectroscopy, X-ray powder diffraction (XRD), thermogravimetric analysis (TGA), and the measurement of water contact angles, water uptake, and percentage of porosity. The membranes showed contact angles ranging from 127 to 130 ± 0.5°, which were close to those of superhydrophobicity. The EDS, FTIR spectroscopy, XRD, and TGA results confirmed the formation of the Si-C composite structure after calcination and an increase in the thermal stability. The polymer and composite membranes were found to be hydrophilic, whereas Si-C was hydrophobic. The poly(ethylene glycol) diacrylate derived Si-C membrane showed a good absorption efficiency for tinted toluene from water compared to the others. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45822. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00218995
- Volume :
- 135
- Issue :
- 7
- Database :
- Complementary Index
- Journal :
- Journal of Applied Polymer Science
- Publication Type :
- Academic Journal
- Accession number :
- 126171729
- Full Text :
- https://doi.org/10.1002/app.45822