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“Clean” Monodisperse Latexes as Model Colloids

  • H. J. van den Hul
  • J. W. Vanderhoff

Abstract

For the past sixteen years the Dow Chemical Company has prepared and distributed monodisperse latexes as a scientific service. These latexes have found a wide variety of applications: 1. calibration standards in electron microscopy, optical microscopy, light scattering, ultracentrifugation, aerosol counting, electronic particle counting, and small-angle x-ray diffraction; 2. medical diagnostic tests, e.g., for rheumatoid arthritis, tuberculosis, trichinosis, and human pregnancy; 3. counting of virus particles; 4. determination of the pore size of filters and biological membranes; 5. studies of the reticulo-endothelial system; 6. stimulation of antibody production; 7. purification of antibodies; 8. investigations of the mechanism and kinetics of emulsion polymerization and latex film formation; 9. analysis of flagellate locomotion mechanisms; 10. model colloids. Despite the obvious utility of their very narrow particle size distributions, these latexes have been used in only a few colloidal studies because little was known about the characteristics of their surfaces. Therefore, we attempted to characterize these latexes as to the number and acid strength of their surface ionic groups, to enhance their use in colloidal studies.

Keywords

Double Layer Latex Particle Conductometric Titration Polystyrene Latex Interference Color 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1971

Authors and Affiliations

  • H. J. van den Hul
    • 1
  • J. W. Vanderhoff
    • 1
  1. 1.Physical Research LaboratoryThe Dow Chemical CompanyMidlandUSA

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