含ph敏感共聚物的热敏磁性离子液体水双相体系在不同温度下的液-液平衡

IF 2.1 3区 工程技术 Q3 CHEMISTRY, MULTIDISCIPLINARY
Tian Yao*, Jialin Liu, Baohua Liu and Jialing Song, 
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引用次数: 0

摘要

采用热敏磁性离子液体制备了ph敏感共聚物双水相体系。这些新型系统对外部磁场有响应,通过简单的磁铁应用就可以加速相分离。相形成试剂,包括热敏磁性离子液体和pH敏感共聚物,可以通过加热和pH调节轻松回收,无需使用任何有机溶剂。本研究在0.1 MPa下,测定了制备的三响应双水相体系([BMIMPPG400BMIM][Tempo-OSO3]2 +不同PADB + H2O)在三种不同温度下的液液平衡数据。利用Merchuk方程对实验双节点数据进行建模,各系统均表现出满意的相关性能。较高的温度有利于水双相体系的形成,ph敏感共聚物的成相能力依次为:PADB4.06 >;PADB4.7祝辞PADB6.0。298.15 K下不同PADB的tie-line数据通过两个经验方程确定并相关,均表现出良好的相关性能。所有这些实测的液液平衡数据和这些绿色三重响应双相体系的理论相关性为我们今后在萃取和纯化领域的努力提供了有价值的参考。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Liquid–Liquid Equilibrium of Thermo-Sensitive Magnetic Ionic Liquid Aqueous Biphasic Systems with pH-Sensitive Copolymers at Different Temperatures

Liquid–Liquid Equilibrium of Thermo-Sensitive Magnetic Ionic Liquid Aqueous Biphasic Systems with pH-Sensitive Copolymers at Different Temperatures

Thermosensitive magnetic ionic liquid was applied to fabricate an aqueous biphasic system with pH-sensitive copolymers. These novel systems are responsive to an external magnetic field, enabling accelerated phase separation with the simple application of a magnet. The phase-forming reagents, comprising thermosensitive magnetic ionic liquid and pH-sensitive copolymers, can be effortlessly recovered through heating and pH adjustment, without the need for any use of organic solvents. In this study, liquid–liquid equilibrium data of the developed triple-responsive aqueous biphasic systems ([BMIMPPG400BMIM][Tempo-OSO3]2 + different PADB + H2O) at three different temperatures were determined under 0.1 MPa. The Merchuk equation was utilized to model the experimental binodal data, with all systems demonstrating satisfactory correlation performance. Higher temperatures were found to be beneficial for the formation of the aqueous biphasic system, and the phase-forming abilities of pH-sensitive copolymers are ranked in this order: PADB4.06 > PADB4.7 > PADB6.0. The tie-line data for different PADB at 298.15 K were ascertained and correlated by two empirical equations, both exhibiting good correlation performance. All of these measured liquid–liquid equilibrium data and the theoretical correlations of these green triple-responsive aqueous biphasic systems provide us a valuable reference for future endeavors in the field of extraction and purification.

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来源期刊
Journal of Chemical & Engineering Data
Journal of Chemical & Engineering Data 工程技术-工程:化工
CiteScore
5.20
自引率
19.20%
发文量
324
审稿时长
2.2 months
期刊介绍: The Journal of Chemical & Engineering Data is a monthly journal devoted to the publication of data obtained from both experiment and computation, which are viewed as complementary. It is the only American Chemical Society journal primarily concerned with articles containing data on the phase behavior and the physical, thermodynamic, and transport properties of well-defined materials, including complex mixtures of known compositions. While environmental and biological samples are of interest, their compositions must be known and reproducible. As a result, adsorption on natural product materials does not generally fit within the scope of Journal of Chemical & Engineering Data.
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