华南理工大学学报(自然科学版) ›› 2008, Vol. 36 ›› Issue (7): 62-66,71.

• 化学化工 • 上一篇    下一篇

外加物理场对壳聚糖-亚铁配合反应的影响

蒋寅 王兆梅 叶盛权 郭桦 郭祀远   

  1. 华南理工大学 轻化工研究所, 广东 广州 510640
  • 收稿日期:2007-09-21 修回日期:2007-12-19 出版日期:2008-07-25 发布日期:2008-07-25
  • 通信作者: 郭祀远(1939-),男,教授,博士生导师,主要从事制糖工程、溶液提纯分离与传递过程的研究. E-mail:lfsyguo@scut.edu.cn
  • 作者简介:蒋寅(1980-),女,博士生,主要从事糖类物质的改性与利用研究.E-mail:jiang-yin@126.com
  • 基金资助:

    高等学校博士学科点专项科研基金资助项目(20050561014)

Effects of Extrinsic Physical Fields on the Coordinated Reaction for Chitosan-Fe( Ⅱ )

Jiang Yin  Wang Zhao-mei  Ye Sheng-quan  Guo Hua  Guo Si-yuan   

  1. Research Institute of Light Industry and Chemical Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
  • Received:2007-09-21 Revised:2007-12-19 Online:2008-07-25 Published:2008-07-25
  • Contact: 郭祀远(1939-),男,教授,博士生导师,主要从事制糖工程、溶液提纯分离与传递过程的研究. E-mail:lfsyguo@scut.edu.cn
  • About author:蒋寅(1980-),女,博士生,主要从事糖类物质的改性与利用研究.E-mail:jiang-yin@126.com
  • Supported by:

    高等学校博士学科点专项科研基金资助项目(20050561014)

摘要: 研究了外加磁场、超声和微波辐射等物理场对壳聚糖-亚铁离子配合反应速率和配合量的影响.结果表明:超声波对壳聚糖与亚铁离子配合反应的反应速率及配合能力的强化作用最明显;磁场处理和微波辐射对该反应也有一定的促进作用;各外加物理场的强化作用存在一个阈值.通过对产物的紫外、红外光谱分析,发现电磁场基本上没有改变反应产物——壳聚糖-亚铁离子配合物的化学结构.文中还对外加物理场的作用机理进行了理论探讨.

关键词: 壳聚糖, 亚铁离子, 配合反应, 磁场, 超声, 微波辐射

Abstract:

The effects of several extrinsic physical fields, such as the magnetic field, the ultrasonic wave and the microwave irradiation, on the rate and yield of chitosan-Fe( Ⅱ ) complexing reaction were investigated. The results show that ultrasonic has the greatest effect on the reaction rate and complexing capacity, followed by the magnetic field and the microwave irradiation, and that there is a threshold for the enhancement by the physical fields. UV and IR spectra show that the structure of chitosan-Fe( Ⅱ ) complex treated with magnetic field is almost the same as that of the control. The authors also propose the enhancement mechanisms of the complexing reaction by the three physical fields in the end.

Key words: chitosan, Fe( Ⅱ ), complexing reaction, magnetic field, ultrasonic, microwave irradiation