Investigating the surface properties of polymer‐coated clay by IGC

Yazıcı, Demet Topaloğlu

doi:10.1002/sia.3291

Cited by 8 publications

(2 citation statements)

References 26 publications

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“…Inverse gas chromatography is generally performed at infinite dilution, so that the probe-probe interactions are negligible, and the retention time is governed by solid-probe interactions only. [11,12] The net retention volume (V n ) is the amount of carrier gas required to elute the injected probe gas from the column and is calculated mainly from retention time as described in the following equation [5] :…”

Section: Resultsmentioning

confidence: 99%

Analyzing the surface properties of acrylic-based water-soluble polymers

Yazıcı

Çetinkaya

Şölener

et al. 2017

International Journal of Polymer Analysis and Characterization

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The surface properties of newly synthesized N-methoxy isopropyl acrylamide, N-methoxy isopropyl methacrylamide, cyclo propyl acrylamide, and cyclo propyl methacrylamide polymers were investigated using inverse gas chromatography. The highest dispersive component of the surface energy value was obtained for cyclo propyl methacrylamide at 30°C. The values obtained for all polymers were decreasing with the increasing temperature. The values obtained for the acidic and the basic parameters revealed strong basic characters for the surface of N-methoxy isopropyl methacrylamide and cyclo propyl methacrylamide polymers and weak basic characters for the surface of N-methoxy isopropyl acrylamide and cyclo propyl acrylamide polymers.

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Section: Resultsmentioning

confidence: 99%

Analyzing the surface properties of acrylic-based water-soluble polymers

Yazıcı

Çetinkaya

Şölener

et al. 2017

International Journal of Polymer Analysis and Characterization

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“…This was explained by the cation exchanged energetic sites of clay covered by organic polymers. Indeed, the increase of functional groups reduces the values of γ s d [56,57].…”

Section: Bet Surface Analysismentioning

confidence: 99%

Characterization of surface properties of chitosan/bentonite composites beads by inverse gas chromatography

Bensalem

Hamdi

Confetto

et al. 2021

International Journal of Biological Macromolecules

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Chitosan/bentonite (CSBt) composites beads were prepared by dropwise of a solution containing chitosan and bentonite to an alkaline NaOH solution. Fourier Transform Infrared Spectroscopy, X-ray diffraction analysis, Xray photoelectron spectroscopy, XPS and Brunauer-Emmett-Teller BET analysis have been used to provide new insights on the composition and morphology of CSBt composites beads surface. In this study, inverse gas chromatography (IGC) was implemented to characterize physico-chemical properties of CSBt composites surface. IGC at infinite dilution (IGC-ID) was used to understand the effect of CS on dispersive component of the surface energy of the bentonite. The increasing amount of CS leads to significantly decrease of Bt γ s d emphasizing the Bt coating with CS. The IGC at finite concentration (IGC-FC) was also implemented allowing us to reach several parameters such as: specific surface area with organic probes and the distribution functions of the adsorption energy sites on the solid surface. In this case, the most significant decreases were observed in the specific surface area obtained with the octane and isopropanol probes. The distribution function of the adsorption energy sites obtained with isopropanol revealed the decrease in the number of the high energy sites with increase of CS/Bt mass ratio.

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