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以Cu(Ⅲ)络离子为引发剂,采用均聚共水解法合成带有支链的部分水解聚丙烯酰胺(HPAM).实验结果表明:采用均聚共水解法可合成水解度为10%~30%、黏度平均相对分子质量(Mr)为8.0×106的聚合物;增大Cu(Ⅲ)络离子及链转移剂甲酸钠的浓度,将会降低聚合物的Mr;加入适量氨可提高聚合物的Mr.
The partially hydrolyzed polyacrylamide (HPAM) with branched chain was synthesized by homopolymerization and co-hydrolysis with Cu (Ⅲ) ion as the initiator.The experimental results showed that the degree of hydrolysis was 10% 30%, and the average molecular weight of Mr is 8.0 × 106. Increasing the concentration of Cu (Ⅲ) complex ion and chain transfer agent sodium formate will reduce the Mr of the polymer. Adding proper amount of ammonia can increase the polymer Mr. Mr.