(29)Si and (13)C NMR characterization of mixed horizontally polymerized monolayers on silica gel

(29)Si and (13)C NMR characterization of mixed horizontally polymerized monolayers on silica gel

A horizontally polymerized monolayer of mixed C18 and C3 trifunctional silanes on silica and conventional chromatographic phases are examined by NMR spectroscopy. Quantitative 13C and 29Si NMR measurements indicate that a dense and highly polymerized monolayer of bonded groups is formed on the surfa...

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Veröffentlicht in:Analytical chemistry (Washington) 1993-08, Vol.65 (15), p.2048
Hauptverfasser: Fatunmbi, Hafeez O, Bruch, Martha D, Wirth, Mary J
Format: Artikel
Sprache:eng
Schlagworte:
400102 - Chemical & Spectral Procedures
400201 - Chemical & Physicochemical Properties
ADSORBENTS
Carbon
Chemical elements
CHEMICAL REACTIONS
CHROMATOGRAPHY
DATA
EXPERIMENTAL DATA
HYDRIDES
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
MAGNETIC RESONANCE
NUCLEAR MAGNETIC RESONANCE
NUMERICAL DATA
Organic chemistry
ORGANIC COMPOUNDS
ORGANIC POLYMERS
ORGANIC SILICON COMPOUNDS
POLYMERIZATION
POLYMERS
RESONANCE
SEPARATION PROCESSES
SILANES
SILICA GEL
SILICON COMPOUNDS
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Beschreibung
Zusammenfassung:A horizontally polymerized monolayer of mixed C18 and C3 trifunctional silanes on silica and conventional chromatographic phases are examined by NMR spectroscopy. Quantitative 13C and 29Si NMR measurements indicate that a dense and highly polymerized monolayer of bonded groups is formed on the surface.
ISSN:0003-2700
1520-6882
DOI:10.1021/ac00063a020