粘度法研究接枝型高聚物与表面活性剂的相互作用

Study on Influences of Surfactants upon Viscosity of Graft Polymer Solutions

高分子量聚合物与表面活性剂在油田工作液中的混合应用增加迅速,两者的相互作用成为油田化学研究的重点之一。分析了阴离子表面活性剂十二烷基硫酸钠SDS、阳离子表面活性剂十六烷基三甲基溴化铵CTAB、非离子表面活性剂Triton X-100三种不同类型的表面活性剂对接枝共聚物型高聚物PVA-g-AMPS溶液粘度性质的影响。结果表明,阴离子表面活性剂与高聚物的疏水链相互作用使静电斥力增加,体系粘度增大;阳离子表面活性剂与高聚物的电中和作用及复合物的形成使体系粘度下降;非离子表面活性剂与高聚物有较强的氢键作用,体系粘度有所上升。

This paper described the study on influences of different surfactants such as SDS,CTAB,Trion-100 upon viscosity of water solution of hydrophobic amphoteric graft copolymer PVA-g-AMPS.The research conducted shows that the viscosity of water solution of this graft polymer increases and decreases depends on rejection or attraction between the graft copolymer and the surfactants introduced in the tests.