Investigation of thermodynamic properties of Amine Modified Polystyrene and its use for separation of isomers

Adıgüzel A. Ç., Korkmaz B., ÇAKAR F., CANKURTARAN Ö., Şenkal B. F.

Fluid Phase Equilibria, cilt.559, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 559
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1016/j.fluid.2022.113467
  • Dergi Adı: Fluid Phase Equilibria
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, INSPEC, Metadex, Civil Engineering Abstracts
  • Anahtar Kelimeler: Inverse Gas Chromatography, Thermodynamics, Isomer Selectivity, Polymer Modification, Polystyrene Based Polymer, INVERSE-GAS-CHROMATOGRAPHY, GLASS-TRANSITION TEMPERATURE, INFINITE DILUTION, SURFACE CHARACTERIZATION, SOLUBILITY PARAMETERS, POLYMER, METHACRYLATE)
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

© 2022In this study, thermodynamic properties, glass transition temperature and isomer separation ability of PVBC (poly (vinyl benzyl chloride)) -Diethanol amine (PVBC-DEA) polymer was investigated by IGC method. For purpose, the retention diagrams were drawn using interactions between PVBC-DEA with selected isomer solvents (i-butyl acetate, n-butyl acetate and t-butyl acetate) at between 85 and 110°C. The glass transition temperature value of the polymer was determined from the retention diagrams as 76°C and the obtained value, it has been understood that this value is compatible with 75.2°C found by differential scanning calorimetry. The selectivity coefficients, ∝, of the isomer solvents were determined for the PVBC-DEA in the infinite dilution, according to the results obtained, it was revealed that the polymer can separate the isomers. The polymer-solvent interaction parameters for Flory-Huggins theory, χ12∞, and the equation of state theory, χ12*,the effective exchange energy parameters, χeff, the weight fraction activity coefficient, Ω1∞, and also the partial molar heat of mixing at infinite dilution of solvent, ΔH¯1∞, the molar heat of vaporization of solvent, ΔH¯v, and the partial molar heat of sorption of solvent, ΔH¯s, were calculated between 85 and 110°C. The obtained results were discussed.