OXIDATIVE-DEGRADATION OF WATER - SOLUBLE POLYETHERS BY HO-CENTER-DOT AND HO2-CENTER-DOT GENERATED PHOTOCHEMICALLY - FT-IR STUDIES

Authors
KACZMAREK H LINDEN LA RABEK JF
Citation
H. Kaczmarek et al., OXIDATIVE-DEGRADATION OF WATER - SOLUBLE POLYETHERS BY HO-CENTER-DOT AND HO2-CENTER-DOT GENERATED PHOTOCHEMICALLY - FT-IR STUDIES, Macromolecular symposia, 84, 1994, pp. 351-363
Citations number
9
Categorie Soggetti
Polymer Sciences
Journal title
Macromolecular symposia → ACNP
ISSN journal
10221360
Volume
84
Year of publication
1994
Pages
351 - 363
Database
ISI
SICI code
1022-1360(1994)84:<351:OOW-SP>2.0.ZU;2-O
Abstract
Two water-soluble polyethers, poly(ethylene oxide) and poly(methyl vin yl ether) were UV irradiated in hydrogen peroxide (H2O2) solutions. It has been shown that HO. and HO2. radicals accelerate oxidative degrad ation of these polymers. Hydroxy (HO.) and probably hydroperoxy (HO2.) radicals can abstract hydrogen from methylene groups in both polymers . As a result of further oxidative reactions, different carbonyl, hydr oxy and hydroperoxy groups are formed. A mechanism for the formation o f these groups has been proposed.