Pei Xun Li

Summary

Affiliation: University of Oxford
Country: UK

Publications

  1. doi request reprint Adsorption of gemini surfactants with partially fluorinated chains at three different surfaces: neutron reflectometry results
    Pei Xun Li
    Physical and Theoretical Chemistry Laboratory, South Parks Road, Oxford OX1 3QZ, UK
    Langmuir 27:656-64. 2011
  2. doi request reprint Limitations in the application of the Gibbs equation to anionic surfactants at the air/water surface: sodium dodecylsulfate and sodium dodecylmonooxyethylenesulfate above and below the CMC
    Hui Xu
    Physical and Theoretical Chemistry Laboratory, South Parks Road, University of Oxford, Oxford OX1 3QZ, UK
    Langmuir 29:9335-51. 2013
  3. ncbi request reprint Limitations in the use of surface tension and the gibbs equation to determine surface excesses of cationic surfactants
    Pei Xun Li
    Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QZ, United Kingdom
    Langmuir 30:6739-47. 2014
  4. doi request reprint Neutron reflectometry of quaternary gemini surfactants as a function of alkyl chain length: anomalies arising from ion association and premicellar aggregation
    Pei Xun Li
    Physical and Theoretical Chemistry Laboratory, South Parks Road, Oxford OX1 3QZ, United Kingdom
    Langmuir 27:2575-86. 2011
  5. doi request reprint Application of the Gibbs equation to the adsorption of nonionic surfactants and polymers at the air-water interface: comparison with surface excesses determined directly using neutron reflectivity
    Pei Xun Li
    Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QZ, UK
    Langmuir 29:9324-34. 2013
  6. ncbi request reprint Adsorption of gemini surfactants with dodecyl side chains and different spacers, including partially fluorinated spacers, on different surfaces: neutron reflectometry results
    Pei Xun Li
    Physical and Theoretical Chemistry Laboratory, South Parks Road, Oxford OX1 3QZ, U K
    Langmuir 27:1844-52. 2011

Detail Information

Publications6

  1. doi request reprint Adsorption of gemini surfactants with partially fluorinated chains at three different surfaces: neutron reflectometry results
    Pei Xun Li
    Physical and Theoretical Chemistry Laboratory, South Parks Road, Oxford OX1 3QZ, UK
    Langmuir 27:656-64. 2011
    ..This reversal is accompanied by a marked thinning of the layer, which is attributed to a shift in the balance between the interactions of the hydrocarbon spacer and fluorocarbon chain fragments and the OTS surface...
  2. doi request reprint Limitations in the application of the Gibbs equation to anionic surfactants at the air/water surface: sodium dodecylsulfate and sodium dodecylmonooxyethylenesulfate above and below the CMC
    Hui Xu
    Physical and Theoretical Chemistry Laboratory, South Parks Road, University of Oxford, Oxford OX1 3QZ, UK
    Langmuir 29:9335-51. 2013
    ..Previous measurements of the activity of SDS above the CMC were found to be semiquantitatively consistent with the change in mean activity predicted by the MA model but inconsistent with the combined ST, NR, and Gibbs equation results. ..
  3. ncbi request reprint Limitations in the use of surface tension and the gibbs equation to determine surface excesses of cationic surfactants
    Pei Xun Li
    Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QZ, United Kingdom
    Langmuir 30:6739-47. 2014
    ..Comparison of ellipsometry and NR for C16TAX in 0.1 M KX (X = F or Cl) shows that ellipsometry cannot, as yet, be quantitatively modeled accurately enough for surface excess determination independent of NR calibration. ..
  4. doi request reprint Neutron reflectometry of quaternary gemini surfactants as a function of alkyl chain length: anomalies arising from ion association and premicellar aggregation
    Pei Xun Li
    Physical and Theoretical Chemistry Laboratory, South Parks Road, Oxford OX1 3QZ, United Kingdom
    Langmuir 27:2575-86. 2011
    ..This model shows that both dimerization and ion association are required to explain the surface tension behavior of cationic gemini bromide surfactants and that, in many cases, the prefactor itself varies with concentration. ..
  5. doi request reprint Application of the Gibbs equation to the adsorption of nonionic surfactants and polymers at the air-water interface: comparison with surface excesses determined directly using neutron reflectivity
    Pei Xun Li
    Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QZ, UK
    Langmuir 29:9324-34. 2013
    ..3 × 10(-6) m. ..
  6. ncbi request reprint Adsorption of gemini surfactants with dodecyl side chains and different spacers, including partially fluorinated spacers, on different surfaces: neutron reflectometry results
    Pei Xun Li
    Physical and Theoretical Chemistry Laboratory, South Parks Road, Oxford OX1 3QZ, U K
    Langmuir 27:1844-52. 2011
    ....