Anomalous diffusion of iodine ions into polypropylene implanted with F+ and I+ ions |
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Authors: | Vladimí r Hnatowicz,J. Kví tek,V clav S vorc í k,Vladimí r Rybka,Vladimí r Popok |
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Affiliation: | Vladimír Hnatowicz,J. Kvítek,Václav S̆vorc̆ík,Vladimír Rybka,Vladimír Popok |
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Abstract: | The diffusion of K and I atoms from 5 M water solution of KI into polypropylene implanted with 150 keV F+ and I+ was studied at boiling temperature. Standard Rutherford back scattering (RSB) technique was used for the determination of concentration depth profiles of diffused atoms. It was found that the I and K atoms penetrate the polymer surface layer affected by ion implantation and they are captured by trapping centers produced by electronic energy losses of implanted ions. The uptake of K atoms is several times higher than that of I atoms, and the relative K concentration exceeds the KI stoichiometric value. © 1995 John Wiley & Sons, Inc. |
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