Thermodynamic studies on tert-amine modified polystyrene based polymer/solvent systems by inverse gas chromatography method

Authors : A Çiğdem ADIGÜZEL, Burak KORKMAZ, Fatih ÇAKAR, Özlem CANKURTARAN, B Filiz ŞENKAL

Pages : 414-421

View : 44 | Download : 9

Publication Date : 2021-11-17

Article Type : Research Paper

Abstract :In the present work, vinyl benzyl chloride insert ignore into journalissuearticles values(VBC); was polymerized by using free radical polymerization. The obtained PVBC was reacted with dibutyl amine to obtain tertiary amine modified polystyrene based polymer insert ignore into journalissuearticles values(PVBC-Dibutyl amine);. The inverse gas chromatography insert ignore into journalissuearticles values(IGC); method was used to examine the thermodynamic properties of the polymer. Firstly, the retention diagrams of some polar and non-polar solvents on PVBC-Dibutyl amine were obtained over a temperature range from 135 to 160° C. Then, the thermodynamic parameters, including Flory–Huggins interaction parameter, weight fraction activity coefficient, partial molar heat of sorption, and partial molar heat of mixing were determined via interactions between the polymer and selected solvents at infinite dilution. The results reveal that the alkanes are poor solvents for the polymer whereas n-butyl acetate, i-butyl acetate, ethyl acetate, n-propylbenzene, i-propylbenzene, and ethylbenzene are moderately solvents in the studied temperature range.
Keywords : Inverse gas chromatography, Thermodynamics, Polystyrene based polymer

ORIGINAL ARTICLE URL