Use of spin traps to measure the addition and fragmentation rate coefficients of small molecule RAFT-adduct radicals

被引:50
作者
Chernikova, Elena [1 ]
Golubev, Vladimir [1 ]
Filippov, Anatoly [1 ]
Lin, Ching Yeh [2 ]
Coote, Michelle L. [2 ]
机构
[1] Moscow MV Lomonosov State Univ, Fac Chem, Polymer Dept, Moscow 119991, Russia
[2] Australian Natl Univ, Res Sch Chem, ARC Ctr Excellence Free Rad Chem & Biotechnol, Canberra, ACT 0200, Australia
基金
俄罗斯基础研究基金会; 澳大利亚研究理事会;
关键词
IONIZATION MASS-SPECTROMETRY; THIOKETONE-MEDIATED POLYMERIZATION; SIZE-EXCLUSION CHROMATOGRAPHY; CHAIN-TRANSFER POLYMERIZATION; SEC-ESI-MS; AB-INITIO; BUTYL ACRYLATE; EQUILIBRIUM; MECHANISM; KINETICS;
D O I
10.1039/c0py00245c
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Spin traps have been used to obtain the first direct experimental determination of the addition (5 x 10(6) L mol(-1) s(-1)), fragmentation (8 x 10(-3) s(-1)) and self-termination (6.5 x 10(2) L mol(-1) s(-1)) rate coefficients in RAFT polymerization using the interaction of a tert-butyl radical with tert-butyl dithiobenzoate at ambient temperature as a model reaction.
引用
收藏
页码:1437 / 1440
页数:4
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