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环境化学  2015 

烯烃臭氧化反应机制的研究进展

Keywords: 烯烃,臭氧,基质隔离,反应机制,研究进展

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Abstract:

烯烃与臭氧反应在化工合成中常用来合成醛和酮,此反应在污水处理过程中常用来去除有机污染物,还可以用作有机结构的鉴定.烯烃是对流层大气中最活泼的VOC,与臭氧反应可以生成OH自由基,也是二次有机气溶胶(SOA)的重要来源.本文主要内容包括(1)气相和液相中烯烃臭氧化反应对环境的影响.(2)烯烃臭氧化反应的研究进展.该部分主要包括以Criegee机制为基础的液相和气相中烯烃臭氧化反应机理的研究进展;三种中间体的可能结构及反应过程中的立体选择性问题;气相中烯烃臭氧化反应体系的压力及Criegee中间体的结构对OH自由基产额的影响;异戊二烯和萜烯类化合物对对流层中SOA生成的影响.(3)低温基质隔离技术在烯烃臭氧化反应研究中的应用,并列举了最新的研究成果.

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