Spectroscopy of nanosized composites silicon-organic polymer/nanoporous silicas
Fluorescence and excitation spectra (T = 5–290 K) of nanosized silicon–organic polymers poly(di-n-hexylsilane) and poly(methyl(phenyl)silane) incorporated into porous silica materials MCM-41 and SBA-15 have been studied with varying pore diameter from 2.8 to 10 nm. The controlled variation of the...
Збережено в:
| Дата: | 2006 |
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| Автори: | , , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2006
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| Назва видання: | Физика низких температур |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/120881 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Spectroscopy of nanosized composites silicon-organic polymer/nanoporous silicas / N. Ostapenko, N. Kozlova, S. Suto, A. Watanabe // Физика низких температур. — 2006. — Т. 32, № 11. — С. 1363–1371. — Бібліогр.: 18 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | Fluorescence and excitation spectra (T = 5–290 K) of nanosized silicon–organic polymers
poly(di-n-hexylsilane) and poly(methyl(phenyl)silane) incorporated into porous silica materials
MCM-41 and SBA-15 have been studied with varying pore diameter from 2.8 to 10 nm. The controlled
variation of the pore diameter in the wide range (2.8–10 nm) permitted us, for the first
time, to investigate the optical properties of the polymers on their transition from isolated
macromolecules to a film. It is found that this transition depends on polymer type and occurs via
the formation of new spatially independent structures of the polymers not observed in the spectra
of the film, namely, via the formation of disordered and (or) ordered conformations of polymer
chains and clusters. |
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