Polymer adsorption on platinum: Surface coverage determination using iodide‐125

Adsorption of iodide‐125, a γ 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 fro...

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Veröffentlicht in:	J. Polym. Sci., Polym. Chem. Ed.; (United States) Polym. Chem. Ed.; (United States), 1981-10, Vol.19 (10), p.2451-2455
Hauptverfasser:	Ellis, Tamir M., Van De Mark, Michael R.
Format:	Artikel
Sprache:	eng
Schlagworte:	07 ISOTOPES AND RADIATION SOURCES 070204 - Radiation Sources- Industrial Uses, Radiometric 360404 - Materials- Polymers & Plastics- Physical Properties- (-1987) 400103 - Radiometric & Radiochemical Procedures- (-1987) ADSORPTION BETA DECAY RADIOISOTOPES CHEMICAL ANALYSIS DAYS LIVING RADIOISOTOPES ELECTRON CAPTURE RADIOISOTOPES ELEMENTS FLUORINATED ALIPHATIC HYDROCARBONS HALOGENATED ALIPHATIC HYDROCARBONS INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY INTERMEDIATE MASS NUCLEI IODINE 125 IODINE ISOTOPES ISOTOPES MATERIALS SCIENCE MEASURING METHODS METALS NUCLEI ODD-EVEN NUCLEI ORGANIC COMPOUNDS ORGANIC FLUORINE COMPOUNDS ORGANIC HALOGEN COMPOUNDS ORGANIC POLYMERS PLATINUM PLATINUM METALS POLYETHYLENES POLYMERS POLYOLEFINS QUANTITATIVE CHEMICAL ANALYSIS RADIOISOTOPES RADIOMETRIC ANALYSIS SORPTION SORPTIVE PROPERTIES SURFACE PROPERTIES TRANSITION ELEMENTS
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Beschreibung
Zusammenfassung:	Adsorption of iodide‐125, a γ 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‐cm2 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.
ISSN:	0360-6376 1542-9369
DOI:	10.1002/pol.1981.170191008