PULSE-RADIOLYSIS OF POLY(ETHYLENE OXIDE) IN AQUEOUS-SOLUTION .1. FORMATION OF MACRORADICALS

Authors
ULANSKI P",ZAINUDDIN,"ROSIAK JM
Citation
Jm. Ulanski P",zainuddin,"rosiak, PULSE-RADIOLYSIS OF POLY(ETHYLENE OXIDE) IN AQUEOUS-SOLUTION .1. FORMATION OF MACRORADICALS, Radiation physics and chemistry, 46(4-6), 1995, pp. 913-916
Citations number
9
Categorie Soggetti
Nuclear Sciences & Tecnology","Chemistry Physical","Physics, Atomic, Molecular & Chemical
Journal title
Radiation physics and chemistry → ACNP
ISSN journal
0969806X
Volume
46
Issue
4-6
Year of publication
1995
Part
1
Pages
913 - 916
Database
ISI
SICI code
0969-806X(1995)46:4-6<913:POPOIA>2.0.ZU;2-3
Abstract
Hydroxyl radicals are the main precursors of macroradicals formed at p oly(ethylene oxide) - PEO molecuies upon irradiation in deoxygenated a queous solution. Hydrogen atoms are less reactive. The rate constant o f the reaction of hydrated electrons with PEO is lower than 10(6) dm(3 ) mol(-1) s(-1). For dilute PEO solutions the relationship between the rate constant of (OH)-O-. reaction with PEO and the chain length, bas ed on Smoluchowski equation, is valid over a broad range of molecular weight.