Kinetic Evidence for Near Irreversible Nonionic Micellar Entrapment of N-(2′-Methoxyphenyl)phthalimide (1) under the Typical Alkaline Reaction Conditions

The values of pseudo-first-order rate constants (kobs) for alkaline hydrolysis of 1, obtained at 1.0 mM NaOH and within CmEnT (total concentration of CmEn) range of 3.0–5.0 mM for C12E23 and 10–20 mM for C18E20, fail to obey pseudophase micellar (PM) model. The values of the fraction of near irrever...

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Main Authors: M. Niyaz Khan, Yoke-Leng Sim, Azhar Ariffin
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1155/2014/592691
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author M. Niyaz Khan
Yoke-Leng Sim
Azhar Ariffin
author_facet M. Niyaz Khan
Yoke-Leng Sim
Azhar Ariffin
author_sort M. Niyaz Khan
collection DOAJ
description The values of pseudo-first-order rate constants (kobs) for alkaline hydrolysis of 1, obtained at 1.0 mM NaOH and within CmEnT (total concentration of CmEn) range of 3.0–5.0 mM for C12E23 and 10–20 mM for C18E20, fail to obey pseudophase micellar (PM) model. The values of the fraction of near irreversible CmEn micellar trapped 1 molecules (FIT1) vary in the range ~0–0.75 for C12E23 and ~0–0.83 for C18E20 under such conditions. The values of FIT1 become 1.0 at ≥10 mM C12E23 and 50 mM C18E20. Kinetic analysis of the observed data at ≥10 mM C12E23 shows near irreversible micellar entrapment of 1 molecules under such conditions.
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institution Kabale University
issn 2356-6140
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language English
publishDate 2014-01-01
publisher Wiley
record_format Article
series The Scientific World Journal
spelling doaj-art-3ec2d6c25a16491080082acf8621a8b32025-02-03T00:59:14ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/592691592691Kinetic Evidence for Near Irreversible Nonionic Micellar Entrapment of N-(2′-Methoxyphenyl)phthalimide (1) under the Typical Alkaline Reaction ConditionsM. Niyaz Khan0Yoke-Leng Sim1Azhar Ariffin2Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, MalaysiaDepartment of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, MalaysiaDepartment of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, MalaysiaThe values of pseudo-first-order rate constants (kobs) for alkaline hydrolysis of 1, obtained at 1.0 mM NaOH and within CmEnT (total concentration of CmEn) range of 3.0–5.0 mM for C12E23 and 10–20 mM for C18E20, fail to obey pseudophase micellar (PM) model. The values of the fraction of near irreversible CmEn micellar trapped 1 molecules (FIT1) vary in the range ~0–0.75 for C12E23 and ~0–0.83 for C18E20 under such conditions. The values of FIT1 become 1.0 at ≥10 mM C12E23 and 50 mM C18E20. Kinetic analysis of the observed data at ≥10 mM C12E23 shows near irreversible micellar entrapment of 1 molecules under such conditions.http://dx.doi.org/10.1155/2014/592691
spellingShingle M. Niyaz Khan
Yoke-Leng Sim
Azhar Ariffin
Kinetic Evidence for Near Irreversible Nonionic Micellar Entrapment of N-(2′-Methoxyphenyl)phthalimide (1) under the Typical Alkaline Reaction Conditions
The Scientific World Journal
title Kinetic Evidence for Near Irreversible Nonionic Micellar Entrapment of N-(2′-Methoxyphenyl)phthalimide (1) under the Typical Alkaline Reaction Conditions
title_full Kinetic Evidence for Near Irreversible Nonionic Micellar Entrapment of N-(2′-Methoxyphenyl)phthalimide (1) under the Typical Alkaline Reaction Conditions
title_fullStr Kinetic Evidence for Near Irreversible Nonionic Micellar Entrapment of N-(2′-Methoxyphenyl)phthalimide (1) under the Typical Alkaline Reaction Conditions
title_full_unstemmed Kinetic Evidence for Near Irreversible Nonionic Micellar Entrapment of N-(2′-Methoxyphenyl)phthalimide (1) under the Typical Alkaline Reaction Conditions
title_short Kinetic Evidence for Near Irreversible Nonionic Micellar Entrapment of N-(2′-Methoxyphenyl)phthalimide (1) under the Typical Alkaline Reaction Conditions
title_sort kinetic evidence for near irreversible nonionic micellar entrapment of n 2 methoxyphenyl phthalimide 1 under the typical alkaline reaction conditions
url http://dx.doi.org/10.1155/2014/592691
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AT yokelengsim kineticevidencefornearirreversiblenonionicmicellarentrapmentofn2methoxyphenylphthalimide1underthetypicalalkalinereactionconditions
AT azharariffin kineticevidencefornearirreversiblenonionicmicellarentrapmentofn2methoxyphenylphthalimide1underthetypicalalkalinereactionconditions