Тип публикации: статья из журнала
Год издания: 2021
Идентификатор DOI: 10.17516/1998-2836-0223
Ключевые слова: xanthan, butyl ethers, structure, xanthan butyl ether
Аннотация: Xanthan is an important polysaccharide widely used in many industrial fields. It is produced by the bacteria Xanthomonascampestris. Chemical modification of xanthan can open up new horizons for its use. In this work, xanthan butyl ester was obtained for the first time by the interaction of xanthan and bromobutane using sodium hydroПоказать полностьюxide as a catalyst. The composition and structure of the obtained new xanthan derivative was studied by elemental analysis, IR spectroscopy, X-ray phase analysis, scanning electron microscopy and thermal analysis. The introduction of a butyl group into the xanthan molecule was proved by elemental analysis and IR spectroscopy by the appearance of corresponding bands. It was shown by X-ray phase analysis that xanthan butyl ether has a more X-ray amorphous structure in comparison with the original xanthan. It was shown by scanning electron microscopy that xanthan butyl ether powder consists of particles of a larger size and a layered structure in comparison with the original xanthan. It has been shown by thermal analysis that xanthan butyl ether is less thermostable than the starting xanthan.
Журнал: JOURNAL OF SIBERIAN FEDERAL UNIVERSITY-CHEMISTRY
Выпуск журнала: Vol. 14, Is. 2
Номера страниц: 137-146
ISSN журнала: 19982836
Место издания: KRASNOYARSK
Издатель: SIBERIAN FEDERAL UNIV