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Volumn 28, Issue 8, 2004, Pages 988-995

Modification of reactivity by changing microemulsion composition. Basic hydrolysis of nitrophenyl acetate in AOT/isooctane/water systems

Author keywords

[No Author keywords available]

Indexed keywords

4 NITROPHENYL ACETATE; ACETIC ACID DERIVATIVE; BIS(2 ETHYLHEXYL)SULFOSUCCINATE; DIMETHYL SULFOXIDE; HYDROXIDE; ISOOCTANE; OCTANE; SUCCINIC ACID DERIVATIVE; UNCLASSIFIED DRUG; WATER;

EID: 4644360560     PISSN: 11440546     EISSN: None     Source Type: Journal    
DOI: 10.1039/b401226g     Document Type: Article
Times cited : (31)

References (78)
  • 14
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    • (b) C. J. Li, Chem. Rev., 1993, 93, 2023;
    • (1993) Chem. Rev. , vol.93 , pp. 2023
    • Li, C.J.1
  • 26
    • 4644321186 scopus 로고    scopus 로고
    • note
    • NPA do not vary along with the composition of the microemulsion. This behavior is in accordance with the fact that the enthalpy of solvent transfer between aqueous DMSO and aqueous ethanol is very small by comparison with the enthalpy of solvent transfer for the transition state or the enthalpy of solvent transfer for the hydroxide ions.
  • 27
    • 2142802615 scopus 로고
    • There is a large body of studies showing the validity of the droplet model as a good description of the microheterogeneous structure of microemulsions. The existence of this microstructure guarantees the compartmentalization of the reagents and hence the validity of the kinetic model. See for example the photon correlation spectroscopy studies showing the existence of a good correlation between the Stokes radii of AOT/isooctane/water ternary systems with W (M. Zulauf and H. F. Eicke, J. Phys. Chem., 1979, 83, 480). SAXS and SANS studies have also shown the existence of a linear dependence of the water pool radius with W (M. P. Pileni, J. Phys. Chem., 1993, 97, 6961 and references therein). Infra-red spectroscopic studies of the water structure in the microemulsion show the existence of three types of water: trapped, bound and free water. These results also show that the fraction of bound water is as much as half of the water content for very small W-values (M. B. Temsamani, I. El Hassani and H. D. Hurwith, J. Phys. Chem. B, 1998, 102, 3335 and references therein); There is already evidence of the variation of rate constants with the W parameter of microemulsion composition. In fact, studies on solvolysis in AOT/isooctane/water microemulsions show that the rate constant at the interface of the microemulsion increases as W decreases as a consequence of the changes in the physical properties of the water, see ref. 10.
    • (1979) J. Phys. Chem. , vol.83 , pp. 480
    • Zulauf, M.1    Eicke, H.F.2
  • 28
    • 0011389718 scopus 로고
    • and references therein
    • There is a large body of studies showing the validity of the droplet model as a good description of the microheterogeneous structure of microemulsions. The existence of this microstructure guarantees the compartmentalization of the reagents and hence the validity of the kinetic model. See for example the photon correlation spectroscopy studies showing the existence of a good correlation between the Stokes radii of AOT/isooctane/water ternary systems with W (M. Zulauf and H. F. Eicke, J. Phys. Chem., 1979, 83, 480). SAXS and SANS studies have also shown the existence of a linear dependence of the water pool radius with W (M. P. Pileni, J. Phys. Chem., 1993, 97, 6961 and references therein). Infra-red spectroscopic studies of the water structure in the microemulsion show the existence of three types of water: trapped, bound and free water. These results also show that the fraction of bound water is as much as half of the water content for very small W-values (M. B. Temsamani, I. El Hassani and H. D. Hurwith, J. Phys. Chem. B, 1998, 102, 3335 and references therein); There is already evidence of the variation of rate constants with the W parameter of microemulsion composition. In fact, studies on solvolysis in AOT/isooctane/water microemulsions show that the rate constant at the interface of the microemulsion increases as W decreases as a consequence of the changes in the physical properties of the water, see ref. 10.
    • (1993) J. Phys. Chem. , vol.97 , pp. 6961
    • Pileni, M.P.1
  • 29
    • 0000311189 scopus 로고    scopus 로고
    • and references therein
    • There is a large body of studies showing the validity of the droplet model as a good description of the microheterogeneous structure of microemulsions. The existence of this microstructure guarantees the compartmentalization of the reagents and hence the validity of the kinetic model. See for example the photon correlation spectroscopy studies showing the existence of a good correlation between the Stokes radii of AOT/isooctane/water ternary systems with W (M. Zulauf and H. F. Eicke, J. Phys. Chem., 1979, 83, 480). SAXS and SANS studies have also shown the existence of a linear dependence of the water pool radius with W (M. P. Pileni, J. Phys. Chem., 1993, 97, 6961 and references therein). Infra-red spectroscopic studies of the water structure in the microemulsion show the existence of three types of water: trapped, bound and free water. These results also show that the fraction of bound water is as much as half of the water content for very small W-values (M. B. Temsamani, I. El Hassani and H. D. Hurwith, J. Phys. Chem. B, 1998, 102, 3335 and references therein); There is already evidence of the variation of rate constants with the W parameter of microemulsion composition. In fact, studies on solvolysis in AOT/isooctane/water microemulsions show that the rate constant at the interface of the microemulsion increases as W decreases as a consequence of the changes in the physical properties of the water, see ref. 10.
    • (1998) J. Phys. Chem. B , vol.102 , pp. 3335
    • Temsamani, M.B.1    El Hassani, I.2    Hurwith, H.D.3
  • 30
    • 4644273229 scopus 로고    scopus 로고
    • note
    • NPA ≫ W for all the studied W values, given that W varies between 2 < W < 40.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.