INHIBITED AUTOXIDATION OF STYRENE .V. KINETICS AND DEUTERIUM ISOTOPE EFFECT FOR INHIBITION BY DIPHENYLAMINE PHENYL-ALPHA-NAPHTHYLAMINE AND PHENYL-BETA-NAPHTHYLAMINE
INHIBITED AUTOXIDATION OF STYRENE .V. KINETICS AND DEUTERIUM ISOTOPE EFFECT FOR INHIBITION BY DIPHENYLAMINE PHENYL-ALPHA-NAPHTHYLAMINE AND PHENYL-BETA-NAPHTHYLAMINE
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DOI：
10.1139/v66-127
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发表时间：
1966-01-01
影响因子：
1.1
通讯作者：
INGOLD, KU
中科院分区：
文献类型：
--
作者：
BROWNLIE, IT;INGOLD, KU
本文研究了二苯胺、苯基-α-萘胺和苯基-β-萘胺对苯乙烯热氧化的抑制作用。结果表明，二苯胺和苯基-β-萘胺抑制的氧化反应的自催化作用可能是由于抑制剂自由基与在抑制的初级阶段形成的过氧化氢之间的反应。在目前的实验条件下，苯基-α：-萘胺对该反应的抑制作用很小，不能产生明显的自催化作用，主要的抑制反应是由于氘取代氨基氢产生了相当大的动力学同位素效应（kH/kD~ 3-4），导致氨基氢的夺取。
The thermal oxidation of styrene inhibited by diphenylamine, phenyl-α-naphthylamine, and phenyl-β-naphthylamine has been examined. It has been shown that the autocatalysis of the diphenylamine- and phenyl-β-naphthylamine-inhibited oxidations is probably due to a reaction between the inhibitor radical and the hydroperoxide formed in the primary step of inhibition. This reaction is too slow to produce significant autocatalysis with phenyl-α:-naphthylamine under the present experimental conditions.The primary inhibition reaction involves abstraction of the amino hydrogen since its replacement by deuterium leads to a fairly large kinetic isotope effect (kH/kD~ 3–4).