水溶性AM/AMPS/CHA三元共聚物的合成与性能研究

Synthesis and Properties of Water-Soluble AM/AMPS/CHA Terpolymers

采用丙烯酰胺(AM)、2-丙烯酰胺基-2-甲基丙磺酸(AMPS)和丙烯酸环己酯(CHA),合成了一种水溶性疏水改性AM/AMPS/CHA三元共聚物(PAAC),并对其反应条件进行了优化。对共聚物的性能进行了评价,实验结果表明,该共聚物具有较好的增黏能力,浓度为2000mg·L^(-1)时,其表观黏度达到147.6m Pa·s。95℃时,PAAC溶液的表观黏度为68.6m Pa·s,黏度保留率为45.28%,表现出良好的抗温能力。混合盐浓度为30000 mg·L^(-1)时,PAAC的黏度值和黏度保留率远高于HPAM,表现出良好的抗盐能力。

A water-soluble hydrophobically modified AM/AMPS/CHA terpolymer was synthesized from acrylamide(AM),2-acrylamide-2-methylpropanesulfonic acid(AMPS) and cyclohexyl acrylate(CHA),and the reaction conditions were optimized.By evaluating its performance,the experimental results showed that the copolymer had good viscosity increasing ability,and its apparent viscosity reached 147.6mPa · s when the concentration was 2000 mg/L.At 95℃,the apparent viscosity of PAAC solution was 68.6mPa · s,and the viscosity retention rate was 45.28%,showed good temperature resistance.When the mixed salt concentration was 30000 mg/L,the viscosity value and viscosity retention rate of PAAC were much higher than those of HPAM,showed good salt resistance.