Solvent effect on distribution of phenyl groups for C6H5SiO3/2–SiO2 coatings prepared on polycarbonate substrate

Phenyltriethoxysilane (PhTES) and tetraethoxysilane (TEOS) coatings [ x PhTES·(100 −  x )TEOS (mol%)] ( x  = 0–80) were prepared using methanol (Film A ) or 1-propanol (Film B ) as a solvent on polycarbonate (PC) substrate, and the effect of alcohol solvents on both the adhesion and distribution of...

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Bibliographic Details
Published in:Journal of sol-gel science and technology 2012-04, Vol.62 (1), p.92-97
Main Authors: Mizuta, Yutaka, Daiko, Yusuke, Mineshige, Atsushi, Yazawa, Tetsuo
Format: Article
Language:English
Subjects:
Alcohol
Alcohols
Ceramics
Chemistry
Chemistry and Materials Science
Coatings
Colloidal gels. Colloidal sols
Colloidal state and disperse state
Composites
Evaporation rate
Exact sciences and technology
Fourier transforms
General and physical chemistry
Glass
Inorganic Chemistry
Materials Science
Methyl alcohol
Microbalances
Microorganisms
Migration
Nanotechnology
Natural Materials
Networks
Optical and Electronic Materials
Original Paper
Phenyls
Polycarbonate resins
Polycarbonates
Quartz crystals
Silicon dioxide
Solvent effect
Solvents
Substrates
Tetraethyl orthosilicate
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Summary:Phenyltriethoxysilane (PhTES) and tetraethoxysilane (TEOS) coatings [ x PhTES·(100 −  x )TEOS (mol%)] ( x  = 0–80) were prepared using methanol (Film A ) or 1-propanol (Film B ) as a solvent on polycarbonate (PC) substrate, and the effect of alcohol solvents on both the adhesion and distribution of phenyl groups were studied. The alcohol evaporation rates for Films A and B were monitored by using quartz crystal microbalance (QCM). QCM measurements revealed that the migration of phenyl group to the PC substrate side was strongly related with the alcohol solvent. Transmission fourier transform infrared measurements for these films suggest that a phase-separation between SiO 2 and PhSiO 3/2 networks occur during the alcohol evaporation.
ISSN:0928-0707
1573-4846
DOI:10.1007/s10971-012-2690-1