Structural and Surface Characterization of Newly Synthesized D‐<i>π</i>‐D Type Schiff Base Ligand: (1E,2E)‐3‐[4‐(Dimethylamino)phenyl]prop‐2‐en‐1‐ylidene)phenylamine

Gümrükçü, Gülşah; Garikyan, Serkis; Karaoğlan, Gülnur Keser; Şakar, Dolunay

doi:10.1155/2013/298205

Cited by 3 publications

(3 citation statements)

References 25 publications

(32 reference statements)

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“…the large pores within the structure of the studied Schiff's bases. γ values decreased with increasing temperature (Table 5), inconsistent with previous studies [82].…”

Section: -contrasting

confidence: 89%

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Fabrication and Characterization of Sulfonated Carbon Materials and Chitosan-Derived Functioned Carbon via Schiff’s Base Process for Separation Purposes

Alghamdi,

Yusuf,

Habila

et al. 2023

Separations

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The Schiff bases reaction is applied to form various functioned carbon structures using renewable carbon from waste sources, Chitosan, 4-Amino-3-hydroxy-napthalene-1-sulphnic acid, and dimethyl amino benzaldehyde as starting materials. The formed functioned carbons were characterized by TEM, FTIR, XRD, and surface area analysis to assess their morphology, structure, porosity, and surface functional groups. In addition, the chromatographic-based thermodynamic analysis is applied to evaluate the surface energy and thermodynamic parameters during the separation of hydrocarbon species. Results indicated the formation of various carbon structures in convex-like shapes with diameters between 600 nm and 1500 nm, including side-building edges of diameter between 100 nm and 316 nm. The formed functioned carbon surfaces are rich with O-H, N=C, C=C, C=O, and C=S groups, as indicated by the FTIR. The function carbons are named carbon coated with Chitosan-derived covalent organic layer (C@Chitosan-COL) as well as Schiff’s base-derived sulfonated carbon (Schiff’s-C-S) in relation to the applied starting materials. The chromatographic-based thermodynamic analysis showed that the entropy changes of adsorption (ΔSA) increased with increasing chain length demonstrating less random movement and higher adsorption in both materials. The fabricated C@Chitosan-COL and Schiff’s-C-S showed an efficient separation of hydrocarbon mixture including n-Nonane, n-Decane, n-Undecane, and n-Dodecane.

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“…the large pores within the structure of the studied Schiff's bases. γ values decreased with increasing temperature (Table 5), inconsistent with previous studies [82].…”

Section: -contrasting

confidence: 89%

“…The calculated values from the slope of the proposed relation were lower than the literature values of similar materials, possibly due to the large pores within the structure of the studied Schiff's bases. γ d s values decreased with increasing temperature (Table 5), inconsistent with previous studies [82].…”

Section: Thermodynamic Parameters Calculationscontrasting

confidence: 86%

Fabrication and Characterization of Sulfonated Carbon Materials and Chitosan-Derived Functioned Carbon via Schiff’s Base Process for Separation Purposes

Alghamdi,

Yusuf,

Habila

et al. 2023

Separations

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show abstract

“…Inverse gas chromatography (IGC) has been used for investigation of the interactions of polymers with various liquids [3,4], hyperbranched aliphatic polyesters [5], block copolymers [6], polymer blends [7], nanocomposites [8], cement pastes [9], crude oils [10], surface properties of Schiff base [11], and liquid crystals [12,13]. The method being simple, relatively rapid, with good accuracy, and of low cost and available equipment provide valuable thermodynamic information for physicochemical characterization of materials [14].…”

Section: Introductionmentioning

confidence: 99%

Dispersive Surface Energy and Acid-Base Parameters of Tosylate Functionalized Poly(ethylene glycol) via Inverse Gas Chromatography

Sesıgur

Şakar

Yazıcı

et al. 2014

Journal of Chemistry

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An inverse gas chromatographic (IGC) study of the sorption properties of poly(ethylene glycol) modified with tosylate (PEG-TOS) was presented. PEG-TOS was synthesized via the tosylation of the corresponding poly(ethylene glycol) (PEG) withp-toluenesulfonyl chloride in the basic medium. The synthesized PEG-Tos was characterized by FTIR-ATR and1HNMR techniques. The retention diagrams of n-hexane, n-heptane, n-octane, n-nonane, n-decane, dichloromethane, chloroform, acetone, tetrahydrofuran, ethyl acetate, and ethanol on the PEG and PEG-Tos were plotted at temperatures in K between 303 and 373 by inverse gas chromatography technique. The dispersive component of the surface-free energy,γSD, of studied adsorbent surface was estimated using retention times of different nonpolar organics in the infinite dilution region. Thermodynamic parameters of adsorption (free energy,ΔGAS, enthalpy,ΔHAS, and entropy,ΔSAS), dispersive components of the surface energies,γSD, and the acid,KA, and base,KD, constants for the PEG and PEG-Tos were calculated and the results were discussed.

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Poly (phenyl sulfone)/graphite composite as a robust low-cost, comb-type interdigited sensor for detection of organic solvent vapors

Daşdan

2021

J Polym Res

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Structural and Surface Characterization of Newly Synthesized D‐π‐D Type Schiff Base Ligand: (1E,2E)‐3‐[4‐(Dimethylamino)phenyl]prop‐2‐en‐1‐ylidene)phenylamine

Cited by 3 publications

References 25 publications

Fabrication and Characterization of Sulfonated Carbon Materials and Chitosan-Derived Functioned Carbon via Schiff’s Base Process for Separation Purposes

Fabrication and Characterization of Sulfonated Carbon Materials and Chitosan-Derived Functioned Carbon via Schiff’s Base Process for Separation Purposes

Dispersive Surface Energy and Acid-Base Parameters of Tosylate Functionalized Poly(ethylene glycol) via Inverse Gas Chromatography

Poly (phenyl sulfone)/graphite composite as a robust low-cost, comb-type interdigited sensor for detection of organic solvent vapors

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