The present study reports, high‐performance polymer absorbents for crude oil and organic solvents based on 3D cross‐linked polystyrene‐polymethyl methacrylate/divinyl benzene (PS‐PMMA/DVB). The preparation of the 3D cross‐linked polymer absorbents has been carried out by bulk polymerization method using styrene (S) and methyl methacrylate (MMA) monomers in the presence of DVB with azobisisobutyronitrile as an initiator. The prepared cross‐linked polymer absorbents were characterized by Fourier transform infrared spectroscopy, thermogravimetric and differential scanning calorimetry, and dynamic mechanical analyses. The absorption kinetics, thermodynamics of the absorption process as well as the recyclability of the cross‐linked polymer absorbents were investigated in detail. The developed 3D cross‐linked PS‐PMMA/DVB absorbents have demonstrated excellent absorption capacities for both organic solvents and crude oil. For instance, the developed polymer absorbent (PS‐PMMA/DVB [1 wt%]) shows a maximum absorption capacity of 12 g/g for chloroform_, 6 g/g for tetrahydrofuran, and 3 g/g for crude oil. The absorption capacities by the polymer absorbents show a direct relationship with the polarity of the solvents. Moreover, the change of absorption capacity after several repeated cycles of absorption/desorption was only marginal. The demonstrated absorption capacities and the excellent recyclability make polymer absorbents as potential candidates for the oilfield applications and produced water treatments.

中文翻译：

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三维交联的苯乙烯-甲基丙烯酸甲酯-二乙烯基苯三元共聚物网络，用于有机溶剂和原油吸收

本研究报告了基于3D交联聚苯乙烯-聚甲基丙烯酸甲酯/二乙烯基苯（PS-PMMA / DVB）的用于原油和有机溶剂的高性能聚合物吸收剂。3D交联聚合物吸收剂的制备已通过本体聚合方法进行，使用的是苯乙烯（S）和甲基丙烯酸甲酯（MMA）单体，在DVB存在下，偶氮二异丁腈为引发剂。通过傅立叶变换红外光谱，热重和差示扫描量热法以及动态力学分析对制备的交联聚合物吸收剂进行了表征。详细研究了吸收过程的吸收动力学，热力学以及交联聚合物吸收剂的可回收性。研发的3D交联PS-PMMA / DVB吸收剂对有机溶剂和原油均具有出色的吸收能力。例如，开发的聚合物吸收剂（PS-PMMA / DVB [1 wt％]）对氯仿的最大吸收容量为12 g / g_，四氢呋喃为6 g / g，原油为3 g / g。聚合物吸收剂的吸收能力显示出与溶剂极性的直接关系。而且，在几次重复的吸收/解吸循环之后，吸收容量的变化仅是很小的。证明的吸收能力和出色的可回收性使聚合物吸收剂成为油田应用和采出水处理的潜在候选者。