Тип публикации: статья из журнала
Год издания: 2017
Идентификатор DOI: 10.14258/jcprm.2017031800
Ключевые слова: Cellulose sulfate, Composition, Copper-containing polymers, Ion exchange, Microcrystalline cellulose, Structure
Аннотация: For the first time, the synthesis of water-soluble copper-containing sulfates of microcrystalline cellulose (Cu-MCS) was carried out by ion exchange method. The composition of the obtained products was studied using chemical methods and X-ray spectral microanalysis. The copper content in the obtained Cu-MCS samples was 12.6-14.1%. Показать полностьюThe absence of sodium in the obtained polymer shows complete substitution of sodium cations on the copper cations in the sodium salt of MCC sulfate. The structure of the copper-containing sulfates of microcrystalline cellulose was studied by methods of X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and electron paramagnetic resonance (EPR). It was shown by XRD, that Cu-MCS and the sodium salt of MCC sulfate had amorphous structure in contrast to the samples of the original MCC, with a high degree of crystallinity. According to EPR data there is a formation of copper-containing salt system with a pseudo-crystalline structure in the samples of Cu-MCS. As shown by atomic-force microscopy, the surface of the Cu-MCS films consists of homogeneous crystallites which have a spherical or slightly extended form and the sizes of about 70 nm. The film surface was quite homogeneous in its phase composition and contained no impurities.
Журнал: Khimiya Rastitel'nogo Syr'ya
Выпуск журнала: Is. 3
Номера страниц: 55-61
ISSN журнала: 10295151
Издатель: Altai State University