Physicochemical characterization of organosilylated halloysite clay nanotubes
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- 作者：Andreia F. Peixotoa ; andreia.peixoto@fc.up.pt" class="auth_mail" title="E-mail the corresponding author ; Ana C. Fernandesb ; Clara Pereiraa ; Joã ; o Piresb ; Cristina Freirea ; acfreire@fc.up.pt" class="auth_mail" title="E-mail the corresponding author
- 关键词：Halloysite ; Organosilane ; Silylation ; Clay minerals ; Post-grafting
- 刊名：Microporous and Mesoporous Materials
- 出版年：2016
- 出版时间：1 January 2016
- 年：2016
- 卷：219
- 期：Complete
- 页码：145-154
- 全文大小：1561 K
文摘
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Halloysite nanotubes (HNTs) were silylated successfully with several organosilanes.
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The silylation mechanism proceeded through reaction of alkoxy moieties from organosilane.
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Aminopropyltrimethoxysilane grafted into HNTs with the highest efficiency.
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Aminosilanes showed polymerisation side-reaction via NH2-silicon oligomerization as a parallel functionalisation pathway.