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20 February 1998 Preparation and properties of Ti(OC4H9)4-GPTMS-MMA derived titania-silica sol-gel optical coatings
Qinyuan Zhang, Zhonghong Jiang, Yun Wu, Lili Hu
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Proceedings Volume 3175, Third International Conference on Thin Film Physics and Applications; (1998) https://doi.org/10.1117/12.300680
Event: Third International Conference on Thin Film Physics and Applications, 1997, Shanghai, China
Abstract
Sol-gel processing of acid-catalyzed tetrabutoxytitanate, 3- glycidyl propyl trimethoxisilane and monomeric methyl methacrylate to produce titania-silica sol-gel optical coatings and matrix materials has been systematically studied. The coatings were deposited by dip-coating technique on glass substrates from a polymeric solutions, pseudo-ternary phase diagram were used to outline the regions of stability of the Ti(OC4H9)4-C2H5OH-H2O-HAC and Ti(OC4H9)4-GPTMS-C2H5OH-H2O-HAC system respectively. It was found that the stability of the system depend on the compositions, especially the molar ratio of [H2O]/[Ti(OC4H9)4]. The use of GPTMS allows a thicker coatings than is possible with the sol- gel films prepared from non-organically modified alkoxides.
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Qinyuan Zhang, Zhonghong Jiang, Yun Wu, and Lili Hu "Preparation and properties of Ti(OC4H9)4-GPTMS-MMA derived titania-silica sol-gel optical coatings", Proc. SPIE 3175, Third International Conference on Thin Film Physics and Applications, (20 February 1998); https://doi.org/10.1117/12.300680
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KEYWORDS
Optical coatings
Sol-gels
Glasses
Polymers
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