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A new modified silicone–TiO 2 polymer composite film and its photocatalytic degradation
Author(s) -
Lin LiHuei,
Lee HsunTsing
Publication year - 2006
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.24806
Subject(s) - composite number , photodegradation , silicone , materials science , fourier transform infrared spectroscopy , scanning electron microscope , photocatalysis , raman spectroscopy , wetting , composite material , polymer , chemical engineering , contact angle , polymer chemistry , chemistry , organic chemistry , catalysis , physics , optics , engineering
The photodegradation of the silicone surfactant–TiO 2 composite films was characterized by FTIR, Raman spectroscopy, and scanning electron microscope. After photocatalytic degradation, the FTIR SiOSi peak intensity of the composite film remained unchanged, implying no cleavage of SiOSi bond. The above SiOSi peak intensity is sensitive to the polyoxyethylene chain length of the composite. The PEG10000‐silicone composite is more resistant to photodegradation than those composites with lower molecular weight of constituent PEGs. The wetting rates of the silicone surfactant–TiO 2 composites showed that modified silicone composite films exhibited hydrophobic nature. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 3341–3344, 2006