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Anomalous diffusion of iodine ions into polypropylene implanted with F + and I + ions
Author(s) -
Hnatowicz Vladimír,
Kvítek J.,
S̆vorc̆ík Václav,
Rybka Vladimír,
Popok Vladimír
Publication year - 1995
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1995.070550310
Subject(s) - ion , diffusion , analytical chemistry (journal) , polypropylene , stoichiometry , materials science , ion implantation , scattering , polymer , atomic physics , chemistry , physics , thermodynamics , chromatography , organic chemistry , optics , composite material
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.