Starch Modification by Graft Copolymerization of Acrylonitrile

被引：0
|
作者：
刘瑞贤
李莉
茹宗玲
张黎明
高建平
田汝川
机构：
[1] Department of Chemical Engineering
[2] China
[3] School of Sciences Tianjin University
[4] Anyang 455000
[5] Tianjin 300072
[6] School of Sciences
[7] Anyang University
来源：
Transactions of Tianjin University | 2003年 / 03期
关键词：
starch; acrylonitrile; graft copolymerization;
D O I：
暂无
中图分类号：
TQ316.3 [聚合反应过程];
学科分类号：
0805 ; 080502 ;
摘要：
The graft copolymerization of acrylonitrile (AN) onto starch under the initiation of potassium permanganate was investigated. The effect of various reaction conditions on the graft copolymerization was studied. The relationships between the grafting rate and the initiator concentration of potassium permanganate, monomer acrylonitrile and backbone starch, as well as reaction temperature were established. The oxidation reaction of starch with manganic ions and valence changes of manganic ions during the graft copolymerization were discussed. The results show that manganic ion Mn 7+ underwent a series of valence changes during the graft copolymerization: Mn(Ⅶ) → Mn(Ⅳ) → Mn(Ⅲ) → Mn(Ⅱ). The grafting rate of the graft copolymerization of acrylonitrile onto starch is also given.
引用
收藏
页码：231 / 234
页数：4
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