THE DETERMINATION OF CARBONYLS AS THEIR 2,4-DINITROPHENYLHYDRAZINE (DNPH) DERIVATIVES IN PEROXIDE-CONTAINING POLYMERS

被引：11

作者：

ARNOLD, AR ^{[1
]}

STAPLES, R ^{[1
]}

机构：

[1] MALAYSIAN RUBBER PRODUCERS ASSOC,TUN ABDUL RAZAK LAB,HERTFORD SG13 8NL,ENGLAND

来源：

POLYMER | 1992年 / 33卷 / 08期

关键词：

PEROXIDES; CARBONYLS; HOCK CLEAVAGE; 2,4-DINITROPHENYLHYDRAZINE; POLYISOPRENE;

D O I：

10.1016/0032-3861(92)91075-D

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The interference of allylic hydroperoxides in the reaction of 2,4-dinitrophenylhydrazine (DNPH) with oxidized polyisoprene was investigated. During the DNPH analysis, hydroperoxides were susceptible to acid-catalysed Hock cleavage, producing carbonyl compounds which subsequently reacted with DNPH to form additional hydrazone derivatives. Prior reduction of the hydroperoxides with triphenylphosphine (PPh3) appeared to be a satisfactory method of eliminating this problem, giving more accurate carbonyl levels.

引用

页码：1739 / 1741

页数：3

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