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Atomic oxygen and hydrogen loss coefficient on functionalized polyethylene terephthalate, polystyrene, and polytetrafluoroethylene polymers
Author(s) -
Zaplotnik Rok,
Vesel Alenka,
Mozetič Miran
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.201800021
Subject(s) - polytetrafluoroethylene , polyethylene terephthalate , polystyrene , afterglow , materials science , polymer , hydrogen , polyethylene , analytical chemistry (journal) , polymer chemistry , atom (system on chip) , oxygen , composite material , chemistry , organic chemistry , physics , gamma ray burst , astronomy , computer science , embedded system
Coefficients for atomic loss of hydrogen and oxygen atoms on polyethylene terephthalate (PET), polystyrene (PS), and polytetrafluoroethylene (PTFE) are determined. Measurements are performed in a flowing afterglow with different atom densities between 6 and 60 × 10 20 m −3 and in the pressure range between 8 and 200 Pa. The loss coefficients do not depend significantly on the atom density or pressure. For H atoms they are (2.3 ± 0.4) × 10 −3 , (1.5 ± 0.4) × 10 −3 , and (8.0 ± 3.0) × 10 −4 for PET, PS, and PTFE, respectively, whereas for O‐atoms they are (2.4 ± 1.2) × 10 −3 , (2.2 ± 1.2) × 10 −3 , and (1.1 ± 0.6) × 10 −3 for PET, PS, and PTFE, respectively. These values are valid after saturation of surfaces with particular atoms.