Evaluation of the surface properties of 4-(Decyloxy) benzoic acid liquid crystal and its use in structural isomer separation

Creative Commons License

IŞIK B., ÇAKAR F., CANKURTARAN H., CANKURTARAN Ö.

TURKISH JOURNAL OF CHEMISTRY, cilt.45, sa.3, ss.845-857, 2021 (SCI-Expanded) identifier identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 45 Sayı: 3
  • Basım Tarihi: 2021
  • Doi Numarası: 10.3906/kim-2101-13
  • Dergi Adı: TURKISH JOURNAL OF CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.845-857
  • Anahtar Kelimeler: Inverse gas chromatography, liquid crystal, selectivity, surface properties, INVERSE GAS-CHROMATOGRAPHY, STATIONARY PHASES, THERMODYNAMICAL INTERACTIONS, DISPERSIVE COMPONENT, ENERGY, CELLULOSE, SOLVENTS, COHESION, CARBONS, FIBERS
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

The selectivity of 4-(Decyloxy) benzoic acid (DBA) liquid crystal in surface adsorption region (303.2-328.2 K) and thermodynamic region (423.2 - 433.2 K) was investigated by inverse gas chromatography at infinite dilution (IGC-ID). The selectivity parameters of the structural isomer series named butyl acetate, butyl alcohol, and amyl alcohol series were calculated for the DBA using IGC-ID technique. Additionally, the surface properties including dispersive surface energy (gamma(D)(S)), free energy (Delta G(A)(S)), enthalpy (Delta H-A(S)), and acidity-basicity constants were calculated with net retention volumes obtained from IGC-ID experiment results. When the Delta H-A(S) and Delta G(A)(S) are constants, DBA surface was found to be an acidic character (K-D/K-A congruent to 0.89).