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Ability of a Kaufman source to functionalize the surface of polystyrene by low‐energy (80–225 eV) nitrogen ion bombardment
Author(s) -
Köhler Laurent,
Scaglione Salvatore,
Giorgi Rossella,
Riga Joseph,
Rudolf Petra,
Caudano Roland
Publication year - 2000
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/1096-9918(200010)29:10<647::aid-sia911>3.0.co;2-o
Subject(s) - polystyrene , nitrogen , ion , polymer , chemistry , biocompatibility , low energy , surface modification , surface energy , polymer chemistry , analytical chemistry (journal) , organic chemistry , atomic physics , physics
Some applications of polymers in terms of biocompatibility require only a single chemical group, namely primary amines, to be grafted on a polymer surface. As an alternative to the efficient but unselective plasma method, the efficiency of the Kaufman ion source for incorporation of nitrogen in a polystyrene surface is demonstrated in this study. The influence of different treatment parameters on nitrogen incorporation is examined: the nitrogen ion energy (80–225 eV), the ion dose (1 × 10 15 –5 × 10 16 ions cm −2 ) and the incident angle (55 and 90°). It is also shown that the induced chemical modifications are stable, because no changes are noted when samples are analysed 20 weeks after the treatment. Copyright © 2000 John Wiley & Sons, Ltd.