Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-2617
Salmio, H; Brühwiler, D (2007). Distribution of Amino Groups on a Mesoporous Silica Surface after Submonolayer Deposition of Aminopropylsilanes from an Anhydrous Liquid Phase. Journal of Physical Chemistry C, 111(2):923-929.
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The reaction of mesoporous silica MCM-41 with various aminopropylsilanes was investigated. The distribution of grafted amino groups after submonolayer deposition from anhydrous toluene was probed by fluorescein labeling in conjunction with photoluminescence spectroscopy and pore size analysis. Monoalkoxysilanes generally distributed more uniformly than monopodal and dipodal trialkoxysilanes. The outcome of the grafting reaction additionally depended on the nature of the amino group. Secondary amines grafted more efficiently than their primary analogues. Further, it could be shown that the polarity of the solvent considerably affects the distribution of the amino groups in the case of strongly interacting aminopropylsilanes.
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|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||07 Faculty of Science > Department of Chemistry|
|Deposited On:||24 Jun 2008 13:20|
|Last Modified:||28 Nov 2013 00:06|
|Publisher:||American Chemical Society|
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