One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time. 3972-65-4, Name is 1-Bromo-4-(tert-butyl)benzene, formurla is C10H13Br. In a document, author is Mehrdad, Abbas, introducing its new discovery. Computed Properties of C10H13Br.
Miscibility behavior of hydroxyethyl cellulose/poly(vinyl pyrrolidone) blends in the presence of some imidazolium based ionic liquids
In this study, the effect of 1-butyl-3-methyl imidazolium bromide ([BMIm]Br); 1-hexyl-3-methyl imidazolium bromide ([HMIm]Br) and 1-octyl-3-methyl imidazolium bromide ([OMIm]Br) ionic liquids on the miscibility of poly(vinyl pyrrolidone) and hydoxyethyl cellulose (PVP/HEC) blends were examined. The polymer solvent method was used to study miscibility of PVP/HEC blends. Two miscibility criterions on the based Delta[eta] and Delta K were used to evaluate miscibility. Both Delta[eta] and Delta K miscibility criterions confirmed that the PVP/HEC blends are miscible. PVP/HEC blends in the solid state were characterized with attenuated total reflective-Fourier transform infrared (ATR-FTIR) spectroscopy, differential scanning calorimetry (DSC) and field emission-scanning electron microscopy (FE-SEM). The miscibility of PVP/HEC blends was confirmed by ATR-FfIR, DSC and FE-SEM results. This miscibility was attributed to the strong intermolecular hydrogen bonding interactions between the -OH groups of HEC and -C = 0 groups of PVP. (C) 2019 Elsevier B.V. All rights reserved.
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