Physicochemical characterization of organosilylated halloysite clay nanotubes

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Physicochemical characterization of organosilylated halloysite clay nanotubes

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作者：Andreia F. Peixoto^a ; ^{andreia.peixoto@fc.up.pt" class="auth_mail" title="E-mail the corresponding author} ; Ana C. Fernandes^b ; Clara Pereira^a ; Joã ; o Pires^b ; Cristina Freire^a ; ^{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

•: Halloysite nanotubes (HNTs) were silylated successfully with several organosilanes.
•: The silylation mechanism proceeded through reaction of alkoxy moieties from organosilane.
•: Aminopropyltrimethoxysilane grafted into HNTs with the highest efficiency.
•: Aminosilanes showed polymerisation side-reaction via NH₂-silicon oligomerization as a parallel functionalisation pathway.

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