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

被引：40
|
作者：
ULANSKI, P [1 ]
ZAINUDDIN [1 ]
ROSIAK, JM [1 ]
机构：
[1] NATL ATOM ENERGY AGCY INDONESIA,CTR APPLICAT ISOTOPES & RADIAT,JAKARTA 12070,INDONESIA
来源：
RADIATION PHYSICS AND CHEMISTRY | 1995年 / 46卷 / 4-6期
关键词：
PULSE RADIOLYSIS; POLYMER; MACRORADICAL; KINETICS; POLY(ETHYLENE OXIDE); AQUEOUS SOLUTION;
D O I：
10.1016/0969-806X(95)00291-5
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Hydroxyl radicals are the main precursors of macroradicals formed at poly(ethylene oxide) - PEO molecuies upon irradiation in deoxygenated aqueous solution. Hydrogen atoms are less reactive. The rate constant of 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, based on Smoluchowski equation, is valid over a broad range of molecular weight.
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页码：913 / 916
页数：4
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