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XPS study of dimethylolurea polymers and hollow fibers modified by these polymers. II. XPS study of hollow fibers modified by dimethylolurea polymers
Author(s) -
Rouzies P.,
Lebugle A.
Publication year - 1994
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.1994.070510704
Subject(s) - polysulfone , polymer , membrane , x ray photoelectron spectroscopy , ultrafiltration (renal) , materials science , chemical engineering , polymer chemistry , condensation polymer , sol gel , chemistry , composite material , chromatography , nanotechnology , biochemistry , engineering
Polysulfone ultrafiltration hollow fibres are modified on the surface with polymers obtained by polycondensation of dimethylolurea (DMU). Depending upon the reaction conditions, polymers on the surface present a gel or a film form. In the first case the membranes are called “gel‐supported” and in the second case “coated”. Modified and unmodified polysulfone membranes were analysed by XPS spectroscopy. The modifications observed on a modified membrane were studied by reference to the previous article dealing with XPS analysis of gel and film DMU polymers. The study showed that gel‐supported membranes are modified by a polymer of a gel‐type chemical structure whereas coated membranes are modified by a polymer of film‐type chemical structure. The nature of the support, polysulfone, does not affect the final form of the polymer. © 1994 John Wiley & Sons, Inc.