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Information × Registration Number 0214U000391, 0111U004011 , R & D reports Title Thermodynamics of liquid-vapor equilibrium for systems, containing hydrocarbons derivatives, and their behavior on interphase surfaсe popup.stage_title Head Vysotsky Yuri Borisovich, Registration Date 25-02-2014 Organization Donetsk National Technical University popup.description2 Developed earlier approach is capable of description of affect the internal (structural peculiarities of the film) and external (temperature) factors on the thermodynamic parameters of monolayers at he airwater interface. Exploited model is tested on ten classes of surfactants: alcohols, thioalcohols, saturated and monoienic carboxylic acids, amines, amides of carboxylic acids, alpha-substituted carboxylic acids and substituted melamine. It was shown that 'temperature effect' is 10-20 °С for every two methylene fragments of he chain in good agreement with experimental data. It was found that geometrical parameters of the unit cells of regarded surfactants are defined by the 'a'-type of intermolecular СН----НС interaction, and the tit angle of molecules with respect to the interface is defined by the volume and structural peculiarities of the hydrophilic parts. Used approach enables to define the next regularity: compounds with less voluminous functional group (alcohols, amines, thioalcohols, amides of carboxylic acids) possess crystal monolayer with hexagonal unit cell. While the monolayers of compounds with more voluminous hydrophilic part (alpha-substituted carboxylic acids) have obique unit cell. Product Description popup.authors Бєляєва Олена Олександрівна Висоцький Юрій Борисович Матвієнко Віктор Григорович Фоміна Олена Сергіївна popup.nrat_date 2020-04-02 Close