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Polyamines adsorbed onto silica gel: A Raman microprobe analysis
Author(s) -
GailliezDegremont E.,
Bacquet M.,
Laureyns J.,
Morcellet M.
Publication year - 1997
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/(sici)1097-4628(19970801)65:5<871::aid-app4>3.0.co;2-k
Subject(s) - silanol , microprobe , adsorption , raman spectroscopy , polymer , polyamine , silica gel , chemistry , polymer chemistry , chemical engineering , materials science , organic chemistry , mineralogy , catalysis , biochemistry , physics , optics , engineering
Polyamine [especially poly(ethylenimine) and poly(4‐vinylpyridine)] adsorption onto silica gels for chromatography and water‐decontamination experiments, using a Raman microprobe, is reviewed. First, the bare silica are characterized. Then, the polyamines and the adsorbed polyamines spectra are compared. We show that polyamine adsorption onto silica occurs with two kinds of polymer populations: chemisorbed (trains due to important interactions between silanol and the nitrogen atom) and physisorbed (multilayers) polymer. The modifications of chemisorbed polymer bands are stronger than are the physisorbed ones. © 1997 John Wiley & Sons, Inc. J Appl Polm Sci 65:871–882, 1997