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Influence of UV irradiation on mechanical properties and structures of sol–gel-derived vinylsilsesquioxane films

Ainuddin, Ainun Rahmahwati and Ishigaki, Tomonori and Hakiri, Norio and Muto, Hiroyuki and Sakai, Mototsugu and Matsuda, Atsunori (2012) Influence of UV irradiation on mechanical properties and structures of sol–gel-derived vinylsilsesquioxane films. Journal of the Ceramic Society of Japan, 120 (10). pp. 442-445. ISSN 18821022

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Abstract

The influence of ultraviolet (UV) irradiation on vinylsilsesquioxane (ViSiO3/2) films was investigated using a nanoindentation technique, and the structural changes were analyzed. Solid-state 13C cross-polarization magic-angle-spinning nuclear magnetic resonance and infrared spectra of the films confirmed the polymerization of C=C bonds and formation of a CC bridge structure upon UV irradiation. Since the vinyl group is a photosensitive organic component with a short organic chain, it is expected to show a large improvement in mechanical properties as a result of the formation of an organic network under the influence of UV irradiation. It is shown that varying the intensity of the UV irradiation leads to changes in the hardness and elasticity. The irradiation energy was found to determine the mechanical properties of the ViSiO3/2 films, regardless of the effects of different UV intensities on the hybrid films.

Item Type: Article
Uncontrolled Keywords: Sol–gel process; inorganic–organic hybrid; UV irradiation; indentation
Subjects: T Technology > TP Chemical technology
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Materials Engineering and Design
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 18 Feb 2019 06:56
Last Modified: 18 Feb 2019 06:56
URI: http://eprints.uthm.edu.my/id/eprint/10657
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