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Title: Correlation of nitrogen sorption and confocal laser scanning microscopy for the analysis of amino group distributions on mesoporous silica
Authors : Gartmann, Nando
Brühwiler, Dominik
Published in : Materials
Volume(Issue) : 4
Issue : 6
Pages : 1096
Pages to: 1103
Publisher / Ed. Institution : MDPI AG
Issue Date: 2011
Language : Englisch / English
Subjects : Mesoporous; Silica; Microscopy; Functionalization
Subject (DDC) : 540: Chemie
Abstract: Aminopropylalkoxysilanes are frequently used for the functionalization of mesoporous silica. The analysis of amino group distributions on arrays of silica nanochannels by a combination of nitrogen sorption and confocal laser scanning microscopy provides valuable insight into the mechanisms underlying the interaction of these silanes with mesoporous silica surfaces. Tendencies towards external surface functionalization, non-uniform distribution in the pores, and hydrolysis of the silica framework are shown to depend to a large extent on the mobility of the aminopropylalkoxysilane molecules, which can be adjusted by the number and type of alkoxy groups.
Departement: Life Sciences und Facility Management
Organisational Unit: Institut für Chemie und Biotechnologie (ICBT)
Publication type: Beitrag in wissenschaftlicher Zeitschrift / Article in scientific Journal
Type of review: Peer review (Publikation)
DOI : 10.3390/ma4061096
ISSN: 1996-1944
License (according to publishing contract) : CC BY 3.0: Namensnennung 3.0 Unported
Appears in Collections:Publikationen Life Sciences und Facility Management

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