水解聚马来酸酐的最新合成工艺研究

The latest synthesis process of hydrolyzed polymaleic anhydride

将顺酐与苯酚室温下混合合成一种电荷转移配合物,然后用此配合物进行聚合反应,采用偶氮二异丁腈为引发剂,在反应温度55℃,反应时间5 h,引发剂用量为7.5%比较缓和的条件下,合成的水解聚马来酸酐(HPMA)对碳酸钙阻垢性能良好,阻垢剂浓度为60 mg/L时,对碳酸钙的阻垢率达到91.25%。

Maleic anhydride and phenol are blended together to synthesize a charge-transfer complex, and this complex is initiated by azobisisobutyronitrile to complete polymerization. Reaction condition is mild： reaction temperature 55 ℃, reaction time 5 h, dosage of initiator 7.5%. The HPMA synthesized by this research has good scale inhibition performance,and its scale inhibition rate is 91.25% when concentration of this scale inhibitor is 60 mg/L.