The copolymerization of hydroxyethyl cellulose (HEC) with methyl methacrylate (MMA) or acrylic acid (AA) was carried out by exposing the reactants solution to ultrasonic irradiation.

• 研究了羟乙基纤维素（HEC）分别与甲基丙烯酸甲酯（MMA）和丙烯酸（AA）在超声波辐照作用下的共聚反应；