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A ToF‐SIMS study of electrochemical pretreatments for polymers †
Author(s) -
Brewis D. M.,
Briggs D.,
Dahm R. H.,
Fletcher I.
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(200009)29:9<572::aid-sia898>3.0.co;2-d
Subject(s) - polymer , chemistry , copolymer , polystyrene , electrochemistry , styrene , polypropylene , polymer chemistry , nitric acid , polyethylene , ion , inorganic chemistry , organic chemistry , electrode
Time‐of‐flight SIMS has been used to identify chemical changes caused to hexatriacontane and various hydrocarbon polymers after electrochemical treatment with nitric acid either alone or in the presence of silver ions. The spectra of polypropylene and high‐density polyethylene treated in the presence of Ag 2+ ions indicated the presence of hydroxyl, carbonyl and carboxyl groups. With polystyrene, attack at both the polymer backbone and the ring occurred. A styrene– butadiene– styrene (SBS) block copolymer was the most extensively modified, with preferential attack of the butadiene. Nitrate ester groups were detected in all cases but the concentration was much higher for SBS than for the other polymers. Oxidation of hexatriacontane was confirmed for the first time. In the absence of silver ions the modification was chemically similar for all polymers but to a lesser extent, except in the case of SBS. Copyright © 2000 John Wiley & Sons, Ltd.