The dissolution behavior and solubility of cellulose were evaluated by using 13C NMR, optical microscopy, wide-angle X-ray diffraction (WAXD), FT-IR spectroscopy, DSC, and viscometry. The experiment results revealed that cellulose having viscosity-average molecular weight () of 11...
βij Xi Xj (3) DFT simulation The simulation with density functional theory (DFT) calculations was used to investigate the effect of impregnat- ing ing active the IR csaprebcotrnuwmitfhorLtihOeHmoondeC leOd2 adsorption. s tructures36. The The stability electron of the structures has ...
Carboxymethyl cellulose (CMC) samples were characterized with FT-IR, NMR, HPLC, and viscosity measurements. Water-soluble CMC with DS=0.360.65 was prepared, from both Avicel cellulose and cotton linters in the LiOH/urea system. The total DS of CMC could be controlled by varying the molar ...
In this work, the effects of alkaline hydroxides (NaOH and LiOH) on the direct mechanochemical carbonation using dry high-energy milling of celestine (SrSO4) under CO2 atmosphere was investigated with X-ray diffraction (XRD), infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and...
Based on analysis using X-ray diffraction (XRD), scanning electron microscopy (SEM), a thermogravimetric-differential scanning calorimetric (TG–DSC) analyzer, and Fourier-transform Infrared (FT-IR), this synthetic process consists of procedures including lithium salt melting, permeation, reaction, ...
The result of the present calculation supported the assignment in our previous FT-IR study, where O-D vibration in the Li2O single crystal that was treated by thermal absorption of D2 was observed. The peak observed at 2,715 cm-1 was attributed to O-D in LiOD phase. The present study ...
2.4.3. Fourier Transform Infrared Spectroscopy (FT-IR) The systems were also characterized using Fourier transform infrared spectroscopy (FT-IR) (Nicolet 6700; Thermo Scientific, Waltham, MA, USA), and all the samples were examined using a 4 cm−1resolution and 64 scans in the range of 400...