Search results for "FTIR Absorption"

showing 3 items of 3 documents

OH-related Infrared Absorption Bands in Oxide Glasses

2005

We report the infrared activity, in the spectral region of the OH stretching modes, of different composite silicate glasses whose chemical composition is established by X-ray fluorescence measurements. The analysis of the absorption line profiles is made in terms of different spectral contributions, Gaussian in shape. The comparison with analogous spectra obtained in vitreous silica samples with impurity concentrations < 100 part per million moles is evidence of the effects of the different oxides on the vibrational properties of the OH groups. In particular, for oxide glasses a red shift of the composite band at about 3670 cm(-1), assigned to the OH stretching modes of free Si-OH groups an…

Absorption spectroscopyInfraredFTIR AbsorptionOxide glasseOxideAnalytical chemistryX-ray fluorescenceInfrared spectroscopyCondensed Matter PhysicsCondensed Matter::Disordered Systems and Neural NetworksSylanol groupsSilicateSpectral lineSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)Settore FIS/03 - Fisica Della MateriaElectronic Optical and Magnetic Materialschemistry.chemical_compoundchemistryImpurityHydroxyl groupFTIR spectroscopy.Materials ChemistryCeramics and Compositessilicate glasse
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Thermal evolution of the OH-related infrared absorption lineshape in synthetic wet silica

2008

FTIR absorptionsilanol group
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Spectroscopic and microscopic characterization of BSA hydrogels: towards new biomaterials

2014

Hydrogels protein gelation FTIR absorption AFM SEMSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)
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