| Autor: |
Mamleeva, N. A., Ben'ko, E. M., Kharlanov, A. N., Shumyantsev, A. V. |
| Zdroj: |
Russian Journal of Physical Chemistry; Nov2022, Vol. 96 Issue 11, p2358-2366, 9p |
| Abstrakt: |
The transformations of wheat straw (Triticum L.) treated with ozone were studied by Raman spectroscopy and synchronous thermogravimetric analysis combined with mass spectrometric analysis of products. For lignocellulose material (LCM) samples characterized by different specific ozone consumptions, Raman spectra were obtained. The DSC, TG, and DTG curves, as well as the profiles of the uncondensed products of thermal degradation released in an inert atmosphere, were analyzed. It was shown that ozonation results not only in the ozonolytic destruction of lignin, but also in the destruction of the entire lignin–carbohydrate matrix with release of some part of lignin-bound hemicelluloses; the proportion of cellulose in the ozonized LCMs increased, and there were no changes in the supramolecular structure of cellulose. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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