Dispersive Surface Energy and Acid-Base Parameters of Tosylate Functionalized Poly(ethylene glycol) via Inverse Gas Chromatography
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) with p-toluenesulfonyl chloride in the basic medium. The synthesi...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Hindawi Limited
2014-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2014/402325 |
| _version_ | 1798044495962439680 |
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| author | Feyza Sesigur Dolunay Sakar Ozlem Yazici Fatih Cakar Ozlem Cankurtaran Ferdane Karaman |
| author_facet | Feyza Sesigur Dolunay Sakar Ozlem Yazici Fatih Cakar Ozlem Cankurtaran Ferdane Karaman |
| author_sort | Feyza Sesigur |
| collection | DOAJ |
| description | 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) with p-toluenesulfonyl chloride in the basic medium. The synthesized PEG-Tos was characterized by FTIR-ATR and 1HNMR 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. |
| first_indexed | 2024-04-11T23:04:58Z |
| format | Article |
| id | doaj.art-31c1c00cf80248109060925e07821b70 |
| institution | Directory Open Access Journal |
| issn | 2090-9063 2090-9071 |
| language | English |
| last_indexed | 2024-04-11T23:04:58Z |
| publishDate | 2014-01-01 |
| publisher | Hindawi Limited |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj.art-31c1c00cf80248109060925e07821b702022-12-22T03:58:02ZengHindawi LimitedJournal of Chemistry2090-90632090-90712014-01-01201410.1155/2014/402325402325Dispersive Surface Energy and Acid-Base Parameters of Tosylate Functionalized Poly(ethylene glycol) via Inverse Gas ChromatographyFeyza Sesigur0Dolunay Sakar1Ozlem Yazici2Fatih Cakar3Ozlem Cankurtaran4Ferdane Karaman5Department of Chemistry, Yildiz Technical University, Esenler, 34220 Istanbul, TurkeyDepartment of Chemistry, Yildiz Technical University, Esenler, 34220 Istanbul, TurkeyDepartment of Chemistry, Yildiz Technical University, Esenler, 34220 Istanbul, TurkeyDepartment of Chemistry, Yildiz Technical University, Esenler, 34220 Istanbul, TurkeyDepartment of Chemistry, Yildiz Technical University, Esenler, 34220 Istanbul, TurkeyDepartment of Chemistry, Yildiz Technical University, Esenler, 34220 Istanbul, TurkeyAn 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) with p-toluenesulfonyl chloride in the basic medium. The synthesized PEG-Tos was characterized by FTIR-ATR and 1HNMR 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.http://dx.doi.org/10.1155/2014/402325 |
| spellingShingle | Feyza Sesigur Dolunay Sakar Ozlem Yazici Fatih Cakar Ozlem Cankurtaran Ferdane Karaman Dispersive Surface Energy and Acid-Base Parameters of Tosylate Functionalized Poly(ethylene glycol) via Inverse Gas Chromatography Journal of Chemistry |
| title | Dispersive Surface Energy and Acid-Base Parameters of Tosylate Functionalized Poly(ethylene glycol) via Inverse Gas Chromatography |
| title_full | Dispersive Surface Energy and Acid-Base Parameters of Tosylate Functionalized Poly(ethylene glycol) via Inverse Gas Chromatography |
| title_fullStr | Dispersive Surface Energy and Acid-Base Parameters of Tosylate Functionalized Poly(ethylene glycol) via Inverse Gas Chromatography |
| title_full_unstemmed | Dispersive Surface Energy and Acid-Base Parameters of Tosylate Functionalized Poly(ethylene glycol) via Inverse Gas Chromatography |
| title_short | Dispersive Surface Energy and Acid-Base Parameters of Tosylate Functionalized Poly(ethylene glycol) via Inverse Gas Chromatography |
| title_sort | dispersive surface energy and acid base parameters of tosylate functionalized poly ethylene glycol via inverse gas chromatography |
| url | http://dx.doi.org/10.1155/2014/402325 |
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