ISSN:
0887-624X
Keywords:
poly(ethylene oxide)
;
(poly(oxy-1,2-ethanediyl)
;
PEO
;
hydrogen peroxide
;
hydroxyl radicals
;
hydroperoxyl radicals
;
chain scission process
;
oxidative degradation
;
photodegradation
;
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Poly(ethylene oxide) (poly(oxy-1,2-ethanediyl) is rapidly oxidized by hydroxyl (HO•) and hydroperoxyl (HO•2) radicals generated by photolysis of hydrogen peroxide (H2O2) or by the catalytic decomposition of H2O2 by metallic silver. This process is accompanied by a chain scission during which the molecular weight decreases and the polydispersity changes. As a result of this process, the crystalline structure of poly(ethylene oxide) disappears, and the polymer becomes completely amorphous. © 1995 John Wiley & Sons, Inc.
Additional Material:
15 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pola.1995.080330601