Photochemical strengthening of silica aerogels modified with coumarin groups
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- 作者：Kevin M. Frederick ; Dylan J. Boday ; Jaclynn Unangst ; Robert J. Stover ; Zhe Li ; Stephen Budy ; Douglas A. Loy ; daloy@email.arizona.edu" class="auth_mail" title="E-mail the corresponding author
- 关键词：Silica aerogel ; Photochemical strengthening ; Coumarin modified ; Silsesquioxane ; Porous materials
- 刊名：Journal of Non-Crystalline Solids
- 出版年：2016
- 出版时间：15 January 2016
- 年：2016
- 卷：432
- 期：part_PB
- 页码：189-195
- 全文大小：777 K
文摘
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First coumarin modified silica aerogels
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Prepared by copolymerization of coumarin monomer with silica monomer or by surface modification of silica gel
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UV induced dimerization of coumarin groups in TEPC–TMOS copolymer aerogels resulted in 41% increase in strength.
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UV induced dimerization of coumarin groups in TMPC-surface modified silica aerogels resulted in no change in strength.