摘要
采用胶体滴定法对高取代度阳离子淀粉的电荷性质进行研究.研究结果表明,高取代度阳离子淀粉的电荷性质受pH值和贮存时间的影响较大,热糊化和冷糊化对其电荷性质影响不大,采用胶体滴定和凯氏定氮两种方法测定高取代度阳离子淀粉的取代度试验结果相差较大.
The charge property of cationic starch with high substituted degree is studied by colloid titration. The results show that its charge property is affected much by pH and storing time, and swelling by hot or cool water influences its charge density little. The determining results for the DS of high substituted cationic starch with colloid titration and GB method separately are different.
出处
《长沙理工大学学报（自然科学版）》
CAS
2008年第4期81-85,共5页
Journal of Changsha University of Science and Technology:Natural Science
基金
国家自然科学基金资助项目(20576102)
关键词
阳离子淀粉
高取代度
电荷性质
胶体滴定
cationic starch
high degree of substitution
charge characteristic
colloid titration
