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Surface characterization of plasma‐derivatized polyurethanes
Author(s) -
Giroux Thomas A.,
Cooper Stuart L.
Publication year - 1991
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1991.070430112
Subject(s) - sulfonate , x ray photoelectron spectroscopy , polyurethane , derivatization , contact angle , characterization (materials science) , polymer , deposition (geology) , chemical engineering , materials science , polymer chemistry , chemistry , organic chemistry , nanotechnology , composite material , sodium , high performance liquid chromatography , paleontology , sediment , engineering , biology
The use of plasma deposition to introduce sulfonate groups to the surface of a polyurethane was attempted. In previous work, the bulk incorporation of sulfonate groups was found to improve the blood contacting properties of the base polyurethane but physical properties in the hydrated state were adversely affected. Plasma deposition schemes involving ammonia and sulfur dioxide were utilized in an attempt to incorporate sulfonate groups. Surface characterization by X‐ray photoelectron spectroscopy (XPS) and contact angle measurements was used to follow polymer surface rearrangement dynamics and to address the issue of plasma chemistry specificity. Concerns of reaction specificity were alleviated by using the plasma as a pretreatment which is followed by a chemical surface derivatization.