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Information × Registration Number 0204U006322, 0101U007802 , R & D reports Title Inorganic glass formers confined in nanoporous media: synthesis, structure, dynamics popup.stage_title Head Kirillov Svjatoslav Alexandrovich, Registration Date 22-09-2004 Organization Institute for Technological and Information Innovations, Ltd popup.description2 The problem of confinement of inorganic glass formers into nanoporous matrixes and studies of dynamics of molecules in nanopores are reviewed. It is concluded that Raman spectroscopy is one of the most universal tools for the study of confinement effects. The methods of quantitative description of low frequency part of Raman scattering from amorphous solids are considered. Main algorithms of modeling of the spectra are presented, and subroutines employing these algorithms in terms of MLAB codes are elaborated. Computer control of Raman measurements of samples of nanoporous glasses containing confined model glass formers is performed. Parameters describing picosecond dynamics of the model glass former, salol, confined to nanopores are determined. It is found that the vibrational parameters of "inner" OH-groups of the salol molecule are changing: both frequency modulation and vibrational relaxation become slower. This signifies the changes in collision dynamics of the internal hydrogen atoms arising dueto decoupling of salol molecules in nanopores. Based on the study of the dependence of dynamics parameters on the nanopore radii, sample screening is preformed and recommendations regarding the direction of further studies are created. Product Description popup.authors popup.nrat_date 2020-04-02 Close