西南石油大学学报(自然科学版) ›› 2001, Vol. 23 ›› Issue (5): 58-58–60.DOI: 10.3863/j.issn.1000-2634.2001.05.17

• 油气化学工程与化工 • 上一篇    下一篇

丙烯酸十八酯的聚合反应动力学

宋昭峥1 张贵才2 王晓翠3 赵福麟2
  

  1. (1.石油大学(北京)化工学院,北京昌平102200; 2.石油大学(华东); 3.吉林油田职工大学)
  • 收稿日期:2001-02-12 修回日期:1900-01-01 出版日期:2001-10-20 发布日期:2001-10-20

POLYMERIZATION REACTION KINETICS OF OCTADECYLACRYLATE

SONG Zhao-zheng1 ZHANG Gui-cai2 WANG Xiao-cui3 ZHAO Fu-lin2   

  1. (University of Petroleum (Huadong),Dongying Shandong 257061, China)
  • Received:2001-02-12 Revised:1900-01-01 Online:2001-10-20 Published:2001-10-20

摘要:

用溶液聚合法合成聚丙烯酸十八酯,主要探讨了引发剂、单体、温度及溶剂对聚合反应速率的影响。由实验得到以下主要结论:丙烯酸十八酯在进行溶液聚合反应时,反应速率与单体浓度的一次方成正比,与引发剂的浓度的0.5次方成正比,聚合反应常数的指前因子Aa=123.4,活化能Ea=29.72 kJ/mol;在实验条件下,溶剂结构对丙烯酸十八酯的聚合反应速率没有显著的影响,聚合反应过程中,没有加速聚合现象;在聚合反应过程中,四种溶剂链转移常数的次序为:四氯化碳>三氯甲烷>二氯甲烷>甲苯。

关键词: 聚合反应, 速率, 聚丙烯酸十八酯, 链转移常数

Abstract:

A polymer of octadecyl acrylate has been synthesized in solution and the effect of initiator, monomer, temperature and solvent on the polymerization reaction rate has been studied. Results have shown that the reaction rate is in direct proportion to the first power of monomer concentration and a half power of initiator concentration. Polymerization reaction constant factor Aais 123.4, the activity energyEais 29.72 KJ/mol. The type of solvent has little influence on the polymerization rate and there is no accelerating polymerization. The order of chain transfer constant of four solvents is:CCl4>CHCl3>(CHCl2)2>C6H5CH3.

Key words: polymerization, reaction rate, polyoctadecyl acrylate, chain transfer constant

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