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.

引用

页码：913 / 916

页数：4

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