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几十年来,表面活性剂与水溶性聚合物相互作用的研究一直是非常活跃的课题。起初的工作主要集中在合成的表面活性剂与天然蛋白质(象明胶、血浆蛋白、血色素等)之间的相互作用。后来,人们发现很多生物现象与表面活性剂和蛋白质有关,例如合成的表面活性剂可导致病毒和酶的失活,并能阻止细菌的新陈代谢,这就进一步推动了该项研究的发展,特别是近几年表面活性剂和聚合物在3次采油中的应用,使得这项研究更具有实际应用价值。对于表面活性剂与聚合物的研究,过去的文章大多集中在聚乙烯吡咯烷酮(PVP)-十二烷基硫酸钠(SDS)和聚氧乙烯(PEO)-SDS体系,而对于在我国油田中经常使用的烷基磺酸盐表面活性剂与聚合物的相互作用报道却很少。本文通过表面张力的测定以及稳态荧光方法研究了PVP对十二烷基磺酸钠(AS)聚集行为的影响,并且测定了不同表面活性剂和PVP的浓度下AS聚集数的大小。
For decades, the study of the interaction of surfactants with water-soluble polymers has been a very active topic. Initially, the work focused on the interaction between synthetic surfactants and natural proteins such as gelatin, plasma proteins, hemoglobin, and the like. Later, it was found that many biological phenomena related to surfactants and proteins, such as synthetic surfactants can lead to the inactivation of viruses and enzymes, and to prevent bacterial metabolism, which further promoted the development of this research, in particular In recent years, the application of surfactants and polymers in the third oil recovery makes the research more practical. For the research of surfactant and polymer, most articles in the past focused on PVP-sodium dodecyl sulfate (SDS) and polyoxyethylene (PEO) -SDS systems, but for the past few years, There are few reports on the interaction of alkylsulfonate surfactants with polymers. In this paper, the influence of PVP on the aggregation behavior of sodium dodecyl sulfate (AS) was investigated by measuring the surface tension and the steady-state fluorescence method. The aggregation number of AS under different surfactants and PVP concentrations was measured.