Abstract
Phenyltriethoxysilane (PhTES) and tetraethoxysilane (TEOS) coatings [xPhTES·(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 SiO2 and PhSiO3/2 networks occur during the alcohol evaporation.
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Acknowledgments
We would like to acknowledge the support from Takiron Co., Ltd (PC substrate). This work was supported by 2011 Adaptable and Seamless Technology Transfer Program (A-STEP, JST).
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Mizuta, Y., Daiko, Y., Mineshige, A. et al. Solvent effect on distribution of phenyl groups for C6H5SiO3/2–SiO2 coatings prepared on polycarbonate substrate. J Sol-Gel Sci Technol 62, 92–97 (2012). https://doi.org/10.1007/s10971-012-2690-1
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DOI: https://doi.org/10.1007/s10971-012-2690-1