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Positive Ion Mass Spectrometry during an Atmospheric Pressure Plasma Treatment of Polymers
Author(s) -
Beck Alison J.,
Aranda Gonzalvo Yolanda,
Pilkington Antony,
Yerokhin Aleksey,
Matthews Allan
Publication year - 2009
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.200800220
Subject(s) - polymer , polystyrene , x ray photoelectron spectroscopy , ion , analytical chemistry (journal) , polyethylene , mass spectrometry , atmospheric pressure , helium , mass spectrum , chemistry , materials science , atmospheric pressure plasma , polymer chemistry , plasma , chemical engineering , organic chemistry , chromatography , physics , oceanography , quantum mechanics , engineering , geology
A low power atmospheric pressure helium plasma torch was used to modify the surface chemistry of poly( α ‐methylstyrene), polystyrene, poly(propylene) and polyethylene. Mass spectra of the positive ions present in the plasma during the treatment revealed dominant ions with structures that reflected the structure of the polymer, e.g. C 6 H 5 C n H 2 n containing a phenyl group in the aromatic polymers and hydrocarbon structures C n H 2 n ± 1 up to n = 14 for poly(propylene). Ions up to m / z 300 were detected. X‐ray photoelectron spectroscopy showed that this treatment introduced oxygen‐containing functional groups into the surface of the polymers.