The cationic starch with high degree of substitution bearing quaternary ammonium groups was prepared via reaction of starch with glycidyl trimethyl ammonium chloride (GTA) using the dry process.

• 3环氧丙基)三甲基氯化铵(GTA)阳离子化试剂,干法制备了高取代度季铵型阳离子淀粉。