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首页> 外文期刊>Journal of Applied Polymer Science >Inverse emulsion polymerization of triple monomers of acrylamide, maleic anhydride, and styrene to achieve highly hydrophilic-hydrophobic modified polyacrylamide
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Inverse emulsion polymerization of triple monomers of acrylamide, maleic anhydride, and styrene to achieve highly hydrophilic-hydrophobic modified polyacrylamide

机译：丙烯酰胺，马来酸酐和苯乙烯三重单体的逆乳液聚合，实现高亲水 - 疏水改性的聚丙烯酰胺

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摘要

The purpose of this study was the production of copolymers and terpolymers with highly hydrophilic-hydrophobic properties, using inexpensive and available monomers as potential enhancing oil recovery (EOR) and water production control agents for high-temperature and high-salinity (HTHS) oil reservoirs. For this purpose, several copolymers and terpolymers with different molar percentage of acrylamide/styrene, acrylamide/maleic anhydride, and acrylamide/styrene/maleic anhydride were synthesized by the inverse emulsion polymerization technique. The presence of hydrophobic styrene and hydrophilic maleic anhydride monomers in the copolymer and terpolymer structure, provided some unique properties compared to polyacrylamide, was confirmed by several analyses including HNMR, elemental analysis, FTIR, SEM, TGA, and DSC. Simulating HTHS oil reservoir condition under high salinity, temperature, and shear rate, the rheological studies suggested unlike traditional EOR agents such as polyacrylamide, the viscosity of the copolymer, and terpolymer aqueous solutions showed a considerable increase after a critical polymer concentration and less reduction with the salt increment at both ambient and elevated temperatures. Furthermore, the swelling ratio of the insoluble terpolymers measured versus the time and temperature in salt water increased with the maleic anhydride mole fraction, decreased with the salt concentration, and showed a maximum value at around 57 degrees C. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47753.
机译：本研究的目的是使用廉价且可用的单体具有高亲水性 - 疏水性能的共聚物和三元共聚物，作为潜在的增强的油回收（EOR）和用于高盐度（HTH）的水产量控制剂。为此目的，通过逆乳液聚合技术合成了具有不同摩尔百分比的丙烯酰胺/苯乙烯，丙烯酰胺/马来酸酐和丙烯酰胺/苯乙烯/马来酸酐的多种共聚物和三元共聚物。通过包括HNMR，元素分析，FTIR，SEM，TGA和DSC的几种分析，确认了与聚丙烯酰胺相比的疏水性苯乙烯和亲水性马来酸酐单体的存在。在高盐度，温度和剪切速率下模拟HTHS储存条件，所示的流变研究与传统的EOR代理（如聚丙烯酰胺，共聚物的粘度）不同，并且萜烯水溶液在临界聚合物浓度和减少减少后显示相当大的增加。盐在环境和升高的温度下递增。此外，使用马来酸酐的时间和温度测量的不溶性三元共聚物的溶胀比随着马来酸酐摩尔分数而增加，随着盐浓度降低，并在57摄氏度左右表示最大值。（c）2019柔性期刊， Inc.J.Phill。聚合物。 SCI。 2019,136,47753。

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