Premium
Surface Analysis of Plasma Deposited Polymer Films, 5
Author(s) -
Oran Umut,
Swaraj Sufal,
Friedrich Jörg F.,
Unger Wolfgang E. S.
Publication year - 2005
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.200400075
Subject(s) - monomer , plasma , polymer , oxygen , analytical chemistry (journal) , alcohol , allyl alcohol , plasma polymerization , chemistry , thin film , materials science , polymer chemistry , organic chemistry , nanotechnology , physics , quantum mechanics , catalysis
Summary: The effect of the composite plasma parameter P/F, where P is the plasma power and F is the monomer flow rate, on the chemical character of pulsed plasma deposited allyl alcohol films was investigated by ToF‐SSIMS. Information on the unsaturated character, the cross‐linked and/or branched character of the plasma polymer films was derived in detail. The problem of the retention of OH groups in plasma deposited allyl alcohol films was elucidated in detail using SSIMS data. The lowest conversion rate from the monomer's hydroxyl groups to other oxygen functionalities in the plasma was concluded for the plasma polymer film produced at a P/F ratio of 0.05 W · sccm −1 . It was found that the overall oxygen content of the films decreased vs. increasing P/F ratio. Because the freshly prepared films were investigated without air exposure, ageing on ambient air could be studied in detail. It was found that in the case of plasma deposited allyl alcohol films the ageing on air is probably based on two competing processes which are discussed in detail. Additionally, a review of literature data on the characterization of plasma deposited allyl alcohol films is given.Reduced SSIMS data of plasma deposited allyl alcohol films prepared at different P/F ratios. Retention of the OH groups were derived from the (m − H) + /(m + H) + intensity ratios. Note that the arrow indicates the increase for the retention of OH groups.