超细纤维素与丙烯酸接枝共聚反应规律的研究

Graft Copolymerization of Acrylic Acid onto Superfine Cellulose

用过硫酸盐氧化法使超细纤维素与丙烯酸接枝共聚。当反应温度 88℃ ,反应时间 5h ,单体用量 3 .75mol/L ,引发剂浓度 3 .5mmol/L ,接枝率可达 70 %以上。文章同时对其接枝反应的机理进行了探讨。

This paper describes graft copolymerization of acrylic acid onto superfine cellulose using potassium persulphate as initiator. The graft yield is about 70% high,while reaction temperature was 88℃, reaction time was 5 h, and concentration of monomer or initiator was 3.75 mol/L and 3.5 mmol/L respectively. Also, the reaction mechanism of graft copolymerization is analyzed.