应用化学 ›› 1989, Vol. 0 ›› Issue (5): 83-85.

• 研究简报 • 上一篇    下一篇

Mn3+引发淀粉与丙烯腈接枝共聚物的研究

田汝川, 韦雨春   

  1. 天津大学化学系
  • 收稿日期:1988-08-08 修回日期:1989-03-13 出版日期:1989-10-10 发布日期:1989-10-10
  • 基金资助:
    国家自然科学基金

Mn3+ INITATED GRAFT COPOLYMER OF ACRYLONITRILE ONTO STARCH

Tian Ruchuan, Wei Yuchun   

  1. Department of Chemistry Tianjin University
  • Received:1988-08-08 Revised:1989-03-13 Published:1989-10-10 Online:1989-10-10

摘要: 用过渡金属离子或其配合物引发淀粉的接枝共聚是一个饶有兴趣的课题。Ce4+离子引发淀粉与烯类单体的接枝共聚已有广泛报道[1]。Mehrotra等用稳定的[Mn(H2P2O7)3]3-引发淀粉与烯类单体的接枝共聚取得了满意的结果[2-4]。本文报道用电镜,x-射线衍射和热重分析等方法对这一接枝共聚物的形态、结构和热稳定性的研究结果。

关键词: 焦磷酸锰络合物, 淀粉, 丙烯腈, 接枝共聚物

Abstract: The graft copolymer,of acrylonitrile onto corn starch was prepared by using [Mn(H2P2O7)3]3-as initiator and its morphology, structure and thermal stability have been studied,using scanning electron microscopy, x-ray diffraction and thermogravimetric analysis. The result showed that compared with the raw starch the grafted starch granules becamelarge in size, rough in surface and its shape was changed. The crystallinity of the grafted starch granules decreased with thermal stability being increased.

Key words: Manganic pyrophosphate complex, Starch Acrylonitrile, Graft copolymer