Tricosane (C23H48) and Octacosane (C28H58) mixture phase transition insight via Light scattering techniques

3rd International Youth Scientific Forum with International Participation "New Materials"

Kuryakov, V.N.^1 ; De Sanctis Lucentini, P.G.^2 ; Ivanova, D.D.^3

Oil and Gas Research Institute of RAS (OGRI RAS), 3, Gubkina Street, Moscow

119333, Russia^1

Gubkin Russian State University of Oil and Gas (National Research University), Department of Physics, 65, Leninskii prospect, Moscow

119991, Russia^2

D. Mendeleev University of Chemical Technology of Russia, 9, Miusskaya pl., Moskva

125047, Russia^3

关键词: Component concentration;    Dynamic light scattering technique;    Heating and cooling cycles;    Light scattering techniques;    Literature data;    Measurements of;    Static Light Scattering;    Temperature dependence;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/347/1/012034/pdf
DOI  :  10.1088/1757-899X/347/1/012034

来源: IOP

【 摘 要 】

In this study we analyse several emulsion samples of pure Tricosane (C23H48) and Octacosane (C28H58) paraffins as well as their mixtures with different component concentrations, prepared by means of ultrasonic dispersion without the addition of surfactants. We show that from the measurements of Static Light Scattering temperature dependences it is possible to determine the phase transition temperatures of the paraffins emulsion during the heating and cooling cycles (melting, crystallization and rotator phases). The results for the pure paraffin are in good agreement with the literature data. We produce the outcomes of the Dynamic Light Scattering technique to determine the cluster size of the obtained emulsions (radius 70-120 nm). Those emulsions proved to remain stable during several months.