Enhanced scavenging of a minor component from mixtures of two immiscible liquids by hollow polymer microgels,Molecular Systems Design & Engineering

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Enhanced scavenging of a minor component from mixtures of two immiscible liquids by hollow polymer microgels
Molecular Systems Design & Engineering ( IF 3.2 ) Pub Date : 2021-12-08 , DOI: 10.1039/d1me00152c
Mikhail V. Anakhov _{1,

2,

3} , Rustam A. Gumerov _{1,

2,

3} , Igor I. Potemkin _{1,

2,

3,

4}

Affiliation

Hollow soft nanoparticles are known to be highly versatile containers with high absorption capacity for various substances. In particular, this feature can be applied in terms of solvent separation on the molecular level. In our work, we systematically studied the absorption of a minor component in an asymmetric mixture of two immiscible liquids (like oil and water) by polymer microgels with an inner cavity by means of mesoscopic computer simulations. Our results revealed the presence of two distinct absorption regimes: localization of the absorbed liquid in the microgel shell or in the cavity. Moreover, it was shown that under certain conditions the microgels attain an anisotropic form after the uptake. At the same time, the presence of the cavity increases the absorption capacity of the microgels and shifts the aggregation threshold to the higher values of concentration of the minor component in comparison to the microgels with a regular (continuous) structure. Our findings can be useful for obtaining anisotropic particles as well as for the design of efficient water purification systems.

中文翻译：

中空聚合物微凝胶从两种不混溶液体的混合物中增强清除微量成分

众所周知，中空软纳米粒子是高度通用的容器，对各种物质具有高吸收能力。特别是，该特征可以应用于分子水平的溶剂分离。在我们的工作中，我们通过细观计算机模拟系统地研究了具有内腔的聚合物微凝胶对两种不混溶液体（如油和水）的不对称混合物中微量组分的吸收。我们的结果揭示了两种不同的吸收方式的存在：吸收液体在微凝胶壳或腔中的定位。此外，表明在某些条件下，微凝胶在吸收后会达到各向异性的形式。同时，与具有规则（连续）结构的微凝胶相比，空腔的存在增加了微凝胶的吸收能力，并将聚集阈值转移到较高的微量组分浓度值。我们的发现可用于获得各向异性粒子以及设计高效的水净化系统。

更新日期：2022-01-04

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