两亲高分子驱油剂体系的增粘性能和分子聚集行为

通过氧化-还原体系、采用水溶液胶束共聚法制得了一种两亲高分子(FPAM),研究了电解质、温度、表面活性剂等对两亲高分子在水溶液中的聚集体形态以及对水溶液宏观性质的影响。结果表明,高分子在水溶液中存在着特殊分子聚集体,这种聚集体能使高分子具有较强的耐盐抗温性能;在4%的NaCl溶液中,FPAM(1500 mg/L)体系粘度超过100 mPa.s;加入Gemini型表面活性剂(150 mg/L)的FPAM(1500 mg/L)二次水溶液粘度可达2 700 mPa.s。

Viscosity enhancement and aggregation behavior of amphiphilic macromolecules in aqueous solution

A novel series of amphiphilic macromolecules was synthesized by micellar free radical copolymerization method through redox initiator system initiated polymerization.The effect of electrolyte,temperature and surfactant on the aggregate conformation of amphiphilic macromolecules in aqueous solution was studied.Macromolecule possesses special aggregation,showing strong ability of viscosity enhancement at high salt concentration and high temperature.In addition of NaCl(4%),the viscosity of FPAM(1 500 mg/L) exceeds 100 mPa·s.The effect of surfactant on the aggregate conformation of the amphiphilic molecules as well as the macro properties in aqueous solution was also examined.The viscosity of the FPAM(1 500 mg/L) and Gemini surfactant(150 mg/L) system achieves 2 700 mPa·s in aqueous solution.