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首页> 外文期刊>RSC Advances >Adsorption–desorption behavior of the hydrophobically associating copolymer AM/APEG/C-18/SSS
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Adsorption–desorption behavior of the hydrophobically associating copolymer AM/APEG/C-18/SSS

机译：疏水性缔合共聚物AM / APEG / C-18 / SSS的吸附 - 解吸行为

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摘要

In this study, acrylamide (AM), allyl polyethylene-1000 (APEG), octadecyl dimethyl allyl ammonium chloride (DMDAAC-18), and sodium styrene sulfonate (SSS) were chosen to synthesize a quadripolymer (HPAAT) in which a hydrophobic association exists between the molecules. The critical concentration of the hydrophobic association was determined using fluorescence spectrophotometry. Furthermore, HPAAT formed films by adsorbing onto a carbonate rock surface. The molecular structure of HPAAT was characterized using Fourier-transform infrared spectroscopy and ~(1) H-NMR spectroscopy, the results showed that the obtained product was consistent with the target product. The intrinsic viscosity was determined using an Ubbelohde viscometer. The molecular weight and dispersion exponent of HPAAT were determined using gel permeation chromatography. Addition of HPAAT into 20% HCl decreased the reaction rate of the acid rock obviously, even at a low viscosity. Variation of the reaction rate with time with different amounts of HPAAT was investigated using the volume of carbon dioxide gas produced. The adsorption and desorption of HPAAT on a carbonate rock surface were demonstrated using infrared spectroscopy analysis, scanning electron microscopy and ultraviolet spectrophotometry.
机译：在该研究中，选择丙烯酰胺（AM），烯丙基聚乙烯-1000（APEG），十二烷基二甲基酰氯氯化铵（DMDAAC-18）和苯乙烯磺酸钠（SSS），合成疏水性关联存在的四聚体（HPAAT）在分子之间。使用荧光分光光度法测定疏水性关联的临界浓度。此外，通过吸附到碳酸盐岩表面上，形成HPAAT形成的薄膜。 HPAAT的分子结构用傅里叶变换红外光谱和〜（1）H-NMR光谱，结果表明，所得产物与靶产物一致。使用Ubbelohde粘度计测定本征粘度。使用凝胶渗透色谱法测定HPAAT的分子量和分散指数。将HPAAT添加到20％HCl中明显降低了酸岩的反应速率，即使在低粘度下也是如此。使用产生的二氧化碳气体的体积研究了与不同量的HPAAT的反应速率随时间的变化。使用红外光谱分析，扫描电子显微镜和紫外分光光度法，证明了HPAAT对碳酸盐岩石表面的吸附和解吸。

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