高等学校化学学报 ›› 1985, Vol. 6 ›› Issue (6): 549.

• 研究简报 • 上一篇    下一篇

浓甲醛水溶液催化聚合动力学

刘新鹏, 刘裕铭, 夏少武   

  1. 山东化工学院
  • 收稿日期:1984-01-24 出版日期:1985-06-24 发布日期:1985-06-24

Kinetics of the Catalyzed Polymerization for Concentrated Aqueous Solution of Formaldehyde

Liu Xinpeng, Liu Yuming, Xia Shaowu   

  1. Shandong Dnstitute of Chcmieel Engineering, Qingdao
  • Received:1984-01-24 Online:1985-06-24 Published:1985-06-24

摘要: 在饱和或过饱和的浓甲醛水溶液中,在离子型催化剂作用下的甲醛聚合难以用缩聚机理解释的情况下,我们提出了离子型聚合机理。

Abstract: The kinetics of polymerization for concontratcd aqueous solutions of formaldehyde catalyzed by tin tctrachloride has been investigated. It is demonstrated that the reaction is a first order reaction both for the monomer and the calalyst. Its total activation energy is -2.1 Kcal/moic.It can be concluded that the polymerization of formaldehyde in the aqueous solutions is a reaction of ionic polymerization, which is catalyzed by Lewis acid produced in the presence of tin telrachloride; a reaction mechanism is suggested, and the rate equation YM = k[C][M] in good agreement with the experimental results is derived.

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