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Zeolitic imidazolate framework-methacrylate composite monolith characterization by inverse gas chromatography

Yusuf, K. et al.

Journal of chromatography. A. VOL 1443, ; 2016, 233-240 -- Elsevier Science B.V., Amsterdam. Part; (pages 233-240) -- 2016

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  • Title:
    Zeolitic imidazolate framework-methacrylate composite monolith characterization by inverse gas chromatography
  • Author: Yusuf, K.;
    Badjah-Hadj-Ahmed, A. Y.;
    Aqel, A.;
    Aouak, T.;
    ALOthman, Z. A.
  • Found In: Journal of chromatography. A. VOL 1443, ; 2016, 233-240
  • Journal Title: Journal of chromatography. A.
  • Subjects: Biotechnology; Chemistry; Pharmaceutical Chemistry; LCC: QD271; Dewey: 543.089
  • Publication Details: Elsevier Science B.V., Amsterdam.
  • Language: English
  • Abstract: Highlights•Preparation of zeolitic imidazolate framework-8-methacrylate monolith composite capillary columns for gas chromatographic applications.•Evaluation of the thermodynamic parameters of the prepared monoliths using inverse gas chromatography technique (IGC) using non-polar probes.•Evaluation of the acid-base characteristics of the prepared monoliths using polar probes.•Estimation of the Flory-Huggins interaction parameters between probes and studied monoliths.AbstractThermodynamic characterization of butyl methacrylate-co-ethylene dimethacrylate neat monolith and zeolitic imidazolate framework-8 incorporated with butyl methacrylate-co-ethylene dimethacrylate composite monolith were studied using inverse gas chromatography at infinite dilution under 1MPa column pressure and various column temperatures. The free energy of adsorption (ΔGA), enthalpy of adsorption (ΔHA) and entropy of adsorption (ΔSA) were determined using a series ofn-alkanes. The dispersive component of surface energy (γSD) was estimated by Dorris-Gray and Schultz et al. methods. The composite monolith showed a more energetic surface than the neat monolith. The acidic, KA, and basic, KD, parameters for both materials were estimated using a group of polar probes. A basic character was concluded with more basic behavior for the neat monolith. Flory-Huggins parameter, χ, was taken as a measure of miscibility between the probes with the low molecular weight and the high molecular weight monolith. Inverse gas chromatography provides a better understanding of the role of incorporated zeolitic imidazolate framework (ZIF-8) into the polymer matrix in its monolithic form.
  • Identifier: Journal ISSN: 0021-9673
  • Publication Date: 2016
  • Physical Description: Physical
  • Accrual Information: Weekly
  • Shelfmark(s): 4958.350200
  • UIN: ETOCRN377129306

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