Synthesis and salt resistance of non-ionic polymer P (AM/ APEG400/NVP/SM)

IF 2.6 4区化学 Q3 POLYMER SCIENCE

Journal of Polymer Research Pub Date : 2024-09-12 DOI:10.1007/s10965-024-04129-7

Haiyang Tian, Yunfeng Shi, Heng Zhang, Jie Liu, Lei Li, Peng Tang

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Abstract

The non-ionic hydrophobic associative copolymer AANS was synthesized by micellar polymerization using acrylamide (AM), allyl polyoxyethylene ether (APEG400), N-vinyl pyrrolidone (NVP) and stearyl methacrylate (SM) as raw materials, 2, 2'-azobis (2-methylpropionamidine) dihydrochloride (V50) as initiator, sodium dodecyl sulfate (SDS) as surfactant. The temperature resistance, salt resistance and rheological properties of the polymer were tested by viscometer and rheometer. The change of polymer microstructure in salt solution was analyzed by scanning electron microscopy. The viscosity test results showed that when the polymer concentration was higher than CAC, the polymer solution exhibited good salt resistance and presented good salt thickening performance. The effect of temperature on the salt resistance of polymer solution showed different rules. With the increase in temperature, the resistance of the polymer to NaCl decreased gradually, while the resistance of the polymer to CaCl₂ increased first and then decreased. The resistance of the polymer to CaCl₂ showed a special temperature response. Viscoelastic and shear tests showed that the polymer possessed more robust resistance to extreme sodium chloride concentration than extreme calcium chloride concentration. Micro-morphology and size analysis suggested that the microstructure of the polymer gradually became dense and compact in the salt solution. The results showed that this novel non-ionic hydrophobically associating polymer possessed potential application value in ultra-high salinity reservoirs.

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非离子聚合物 P（AM/APEG400/NVP/SM）的合成和耐盐性能

以丙烯酰胺（AM）、烯丙基聚氧乙烯醚（APEG400）、N-乙烯基吡咯烷酮（NVP）和甲基丙烯酸硬脂酯（SM）为原料，以 2，2'-偶氮双（2-甲基丙脒）二盐酸盐（V50）为引发剂，以十二烷基硫酸钠（SDS）为表面活性剂，通过胶束聚合合成了非离子疏水缔合共聚物 AANS。聚合物的耐温性、耐盐性和流变性能通过粘度计和流变仪进行了测试。扫描电子显微镜分析了盐溶液中聚合物微观结构的变化。粘度测试结果表明，当聚合物浓度高于 CAC 时，聚合物溶液表现出良好的耐盐性，并具有良好的盐增稠性能。温度对聚合物溶液耐盐性的影响呈现出不同的规律。随着温度的升高，聚合物对 NaCl 的耐盐性逐渐降低，而对 CaCl2 的耐盐性先升高后降低。聚合物对 CaCl2 的抗性表现出特殊的温度响应。粘弹性和剪切试验表明，聚合物对极端氯化钠浓度的耐受性比对极端氯化钙浓度的耐受性更强。微观形态和尺寸分析表明，聚合物的微观结构在盐溶液中逐渐变得致密和紧密。结果表明，这种新型非离子亲水缔合聚合物在超高盐度水库中具有潜在的应用价值。

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来源期刊

Journal of Polymer Research 化学-高分子科学

CiteScore

4.70

自引率

7.10%

发文量

472

审稿时长

3.6 months

期刊介绍： Journal of Polymer Research provides a forum for the prompt publication of articles concerning the fundamental and applied research of polymers. Its great feature lies in the diversity of content which it encompasses, drawing together results from all aspects of polymer science and technology. As polymer research is rapidly growing around the globe, the aim of this journal is to establish itself as a significant information tool not only for the international polymer researchers in academia but also for those working in industry. The scope of the journal covers a wide range of the highly interdisciplinary field of polymer science and technology, including: polymer synthesis; polymer reactions; polymerization kinetics; polymer physics; morphology; structure-property relationships; polymer analysis and characterization; physical and mechanical properties; electrical and optical properties; polymer processing and rheology; application of polymers; supramolecular science of polymers; polymer composites.