The hydroxypropyl starch was prepared via reaction of corn starch with 1,2-epoxypropane using fatty alcohol polyoxyethylene ether (FAPE) as a catalyst by dry process.

• 以玉米淀粉为原料,以1,2-环氧丙烷为醚化剂,在碱性条件下,用脂肪醇聚氧乙烯醚(FAPE)催化干法制备了羟丙基淀粉。