POLYMERIZATION OF ALLYL COMPOUNDS .5. INHIBITION BY NITRO COMPOUNDS
POLYMERIZATION OF ALLYL COMPOUNDS .5. INHIBITION BY NITRO COMPOUNDS
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DOI：
10.1002/pol.1951.120060511
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发表时间：
1951-01-01
影响因子：
3.4
通讯作者：
BARTLETT, PD
中科院分区：
文献类型：
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作者：
HAMMOND, GS;BARTLETT, PD
研究了各种硝基化合物对过氧化物诱导的乙酸烯丙酯短链聚合的影响。在所研究的化合物中，对三硝基苯作为缓凝剂活性最强。硝基甲烷和二硝基化合物被发现不如具有可取代核氢原子的芳香族硝基化合物有效，但两者都对聚合反应产生了可测量的延迟影响。研究发现，三硝基苯每个分子至少与 5.9 个自由基发生反应。该数据和其他数据结合自由基通过烷基化机制反应的假设进行讨论。提出了一种涉及攻击硝基本身的替代机制。
The effect of various nitro compounds on the peroxide‐induced short‐chain polymerization of allyl acetate has been investigated. Of the compounds studied,sym‐trinitrobenzene is the most active as a retarder. Nitromethane and dinitrodurence were found to be less effective than aromatic nitro compounds which have replaceable nuclear hydrogen atoms but both exerted a measurable retarding influence on the polymerization reaction. It is found that trinitrobenzene reacts with a minimum of 5.9 radicals per molecule. This and other data are discussed in connection with the hypothesis that radicals react by an alkylation mechanism. An alternative mechanism involving attack on the nitro group itself is suggested.