Title

Polymer Adsorption on Platinum: Surface Coverage Determination Using Iodide-125

Abstract

In the reported experiments, adsorption of iodide-125, a gamma emitter, was used as a quantitative methodology for polymer adsorption surface coverage analysis. Adsorption of I-125 on clean platinum produced surface elemental ratios of I:Pt of 1:4. the technique was applied to the adsorption of polyethylene glycol terephthalate from trifluoroacetic acid on platinum flags with a 2-cm**2 surface area. This polymer adsorption is approximated by a logarithmic relationship similar to the Temkin isotherm. Polymer coverage attained up to 99. 6% of the surface.

Department(s)

Chemistry

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1981 Wiley-Blackwell, All rights reserved.


Share

 
COinS