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。Ce^(4+)离子引发淀粉与烯类单体的接枝共聚已有广泛报道。Mehrotra等用稳定的[Mn(H_2P_2O_7)_3]^(3-)引发淀粉与烯类单体的接枝共聚取得了满意的结果。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。
The graft copolymer,of acrylonitrile onto corn starch was prepared by using [Mn(H_2P_2O_7)_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 beingincreased.
出处
《应用化学》
CAS
CSCD
北大核心
1989年第5期83-85,共3页
Chinese Journal of Applied Chemistry
基金
国家自然科学基金
关键词
淀粉
丙烯腈
接枝共聚物
锰络合物
Manganic pyrophosphate complex
Starch Acrylonitrile
Graft copolymer
