首页 | 本学科首页   官方微博 | 高级检索  
     


Synthesis of starch derivatives with labile cationic groups
Authors:Auzély-Velty Rachel  Rinaudo Marguerite
Affiliation:

Centre de Recherches sur les Macromolécules Végétales (CNRS), Université Joseph Fourier de Grenoble, BP 53, 38041, Grenoble, Cedex, France

Abstract:A new route to starch derivatives bearing hydrolyzable cationic groups was developed. This was based on reacting starch compounds with betaine derivatives in the presence of diisopropylcarbodiimide and 4-dimethylaminopyridine as coupling reagents in an aprotic polar solvent. Water-soluble starches with a perfectly controlled degree of substitution were thus obtained which were fully characterized by infrared, 1H and 13C spectroscopy and viscosity measurements. The cationic groups grafted on the polysaccharides are shown to hydrolyze slowly upon storage at room temperature.
Keywords:Starch betainate   Cationic starches   Cationic maltodextrins   Cationic cyclodextrins
本文献已被 ScienceDirect PubMed 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号