- Tytuł:
- EPR Studies of Carbonized Cellulose - Oxygen Interactions
- Autorzy:
-
Pilawa, B.
Pietrzak, R.
Wachowska, H.
Babeł, K. - Powiązania:
- https://bibliotekanauki.pl/articles/2043418.pdf
- Data publikacji:
- 2005-07
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
61.66.Hq
76.30.Rn - Opis:
- EPR examination of cellulose carbonized at 400ºC and 600ºC has been performed. The aim of this work was to search a sample useful as the oximetric probe in biology and medicine. The higher paramagnetic centers concentration characterizes cellulose carbonized at 600ºC, which was found as the sensitive oximetric probe. Quasi-chemical bonds between cellulose molecules and paramagnetic O$\text{}_{2}$ molecules decrease paramagnetic centers concentration. A linear increase in paramagnetic centers concentration and a linear decrease in EPR linewidth with increasing time of sample evacuation were observed for cellulose carbonized at 600ºC. Oxygen affects spin-lattice interactions in carbonized cellulose.
- Źródło:
-
Acta Physica Polonica A; 2005, 108, 1; 151-154
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł