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Determination of OH Groups at Plasma Oxidised Poly(propylene) by TFAA Chemical Derivatisation XPS: An Inter‐laboratory Comparison
Author(s) -
Gross Thomas,
Pippig Falko,
Merz Birgit,
Merz Rolf,
Vohrer Uwe,
Mix Renate,
Steffen Hartmut,
Bremser Wolfram,
Unger Wolfgang E. S.
Publication year - 2010
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.200900142
Subject(s) - x ray photoelectron spectroscopy , chemical state , polyolefin , chemistry , analytical chemistry (journal) , materials science , chemical engineering , organic chemistry , layer (electronics) , engineering
A first inter‐laboratory comparison was conducted to demonstrate and document the capability of interested laboratories to measure the fraction of COH species on a plasma oxidised poly(propylene) sample by using a chemical derivatisation XPS approach. This report presents the results from that inter‐laboratory comparison and includes the data received for the measured values and their associated standard deviations of laboratory means, at a 95% confidence level. The measurements were guided by a protocol developed within the group before and summarised shortly in the paper. Standard deviations that may characterise the state‐of‐the‐art for the nominally simple and rather often practised case of TFAA chemical derivatisation XPS of COH species on a plasma oxidised polyolefin surface are calculated following ISO 5725‐2:1994. The main conclusion is that the associated degree of equivalence reached by the participating laboratories in this comparison is still low. Further research to improve chemical derivatisation XPS protocols is mandatory.