高等学校化学学报

高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (2): 287.

• 研究简报 • 上一篇    下一篇

2,3-二氰基-2,3-二(X-取代苯基)丁二酸二乙酯在苯乙烯中的分解动力学研究

齐陈泽, 吴靖嘉, 段大勇, 贾志胜, 张斌, 杨第伦   

  1. 兰州大学应用有机化学国家重点实验室, 兰州大学化学系, 兰州, 730000
  • 收稿日期:1993-05-17 修回日期:1993-09-10 出版日期:1994-02-24 发布日期:1994-02-24
  • 通讯作者: 齐陈泽,男,33岁,硕士,讲师.
  • 作者简介:齐陈泽,男,33岁,硕士,讲师.
  • 基金资助:

    国家自然科学基金

A Kinetic Study on the Thermal Decomposition of Diethyl 2,3-Di-cyano-2,3-di(X-Substituted phenyl) Succinates in Styrene

QI Chen-Ze, WU Jing-Jia, DUAN Da-Yong, JIA Zhi-Sheng, ZHANG Bin, YANG Di-Lun   

  1. The State Key Laboratory of Applied Organic Chemistry, Department of Chemistry, Lanzhou University, Lanzhou, 730000
  • Received:1993-05-17 Revised:1993-09-10 Online:1994-02-24 Published:1994-02-24

PDF (PC)

被引次数

8

关键词: 2, 3-二氰基-2, 3-二(X-取代苯基)丁二酸二乙酯, 引发活性, 电子效应, 空间效应

Abstract: The kinetics of thermal decomposition of diethyl 2,3-dicyano-2,3-di(X-substituted 、phenyl) succinates(X=o-OCH3,1;p,m-di-OCH3,2; p-OCH3,3) in styrene at different temperatures was studied by means of dilatometry.The values of Ed for 1,2 and 3 are 134, 64.6 and 51.0 kJ/mol, respectively.The ring substituents of different position in these diesters give the following order of activity:o-OCH3>p,m-di-OCH3>p-OCH3.

Key words: Diethyl 2,3-dicyano-2,3-di(X-substituted phenyl) succinate, Initiation acitivity, Electron effect, Steric effect

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