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Fluoropolymer coated alanine films treated by atmospheric pressure plasmas − In comparison with gamma irradiation
Author(s) -
Kusano Yukihiro,
Bardenshtein Alexander,
Morgen Per
Publication year - 2018
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.201700131
Subject(s) - fluoropolymer , materials science , irradiation , atmospheric pressure plasma , fluorine , composite material , plasma , dielectric barrier discharge , dielectric , analytical chemistry (journal) , polymer , chemistry , organic chemistry , optoelectronics , physics , nuclear physics , quantum mechanics , metallurgy
Fluoropolymer coated alanine films are treated by a dielectric barrier discharge and a gliding arc at atmospheric pressure as well as with gamma irradiation. The film surfaces and the underlying bulk materials are characterized before and after each treatment. The fluorine content decreases and the oxygen content increases at the fluoropolymer surfaces, while deposition of specific plasma energies in the alanine films is detected by electron paramagnetic resonance spectroscopy, indicating that not only the fluoropolymer surfaces but also the bulk alanine materials are modified. Differences of surface and bulk modification effects between the two plasma treatments are discussed in detail.