SYNTHESES AND ESR-SPECTRA OF RADICALS PRODUCED IN THE THERMAL-DECOMPOSITION OF TETRAARYLSUCCINONITRILES

被引：10
|
作者：
PLACEK, J
SZOCS, F
BRAUN, D
SKRZEK, T
机构：
[1] DEUTSCH KUNSTSTOFF INST, SCHLOSSGARTENSTR 6, D-64289 DARMSTADT, GERMANY
[2] SLOVAK ACAD SCI, INST POLYMER, CS-84236 BRATISLAVA, SLOVAKIA
来源：
MACROMOLECULAR CHEMISTRY AND PHYSICS | 1994年 / 195卷 / 02期
关键词：
D O I：
10.1002/macp.1994.021950208
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Tetraarylsuccinonitriles 2a-e were synthesized via oxidative dimerization of diarylacetonitriles 1a-e in basic media. The thermal decomposition of 2 results in two identical cyanodiarylmethyl radicals 3. Both H-1 and C-13 NMR analyses of 1a-e and 2a-e and ESR spectra of 3a-e are presented and discussed. The results of ESR measurements provide a plausible explanation for the different reactivity of cyanodiarylmethyl radicals 3a-e in free radical polymerization.
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页码：463 / 473
页数：11
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