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Nitrogen‐Rich Plasma‐Polymer Films for Biomedical Applications
Author(s) -
TruicaMarasescu Florina,
Wertheimer Michael R.
Publication year - 2008
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.200700077
Subject(s) - x ray photoelectron spectroscopy , polymer , materials science , ellipsometry , nitrogen , plasma , ethylene , plasma polymerization , analytical chemistry (journal) , deposition (geology) , polymerization , chemical engineering , thin film , chemistry , nanotechnology , organic chemistry , composite material , catalysis , paleontology , physics , quantum mechanics , sediment , engineering , biology
Low‐pressure plasma co‐polymerisation of binary gas mixtures of ethylene and ammonia was investigated in order to deposit N‐rich plasma polymer coatings for biomedical applications. Deposition kinetics and relevant surface characteristics were investigated as a function of r.f. power, gas pressure, and NH 3 /C 2 H 4 ratio. Physico‐chemical properties of the coatings were determined by surface‐sensitive techniques: for example, total nitrogen concentrations up to 40 at.‐% were measured by XPS, while those of primary amines were determined by chemical derivatisation followed by XPS analysis. L‐PPE:N films were further characterised by UV‐vis and IR spectroscopic ellipsometry and by CAG.