Generation of Latex Particles and Phase Formation in a Heterogeneous Static Monomer–Water System

IF 1.1 4区化学 Q4 CHEMISTRY, PHYSICAL Colloid Journal Pub Date : 2025-04-11 DOI:10.1134/S1061933X24601215

A. A. Hovhannisyan, G. K. Grigoryan, A. G. Nadaryan, N. H. Grigoryan

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Abstract

The aim of this work is to find new ways to synthesize latexes (polymer suspensions) with a given size and surface structure of particles. The need for such latexes is not large-scale, but their development and production are extremely important for the development of high technologies. Monodisperse latexes are especially valuable in immunological diagnostics of a wide range of diseases. The article presents the results of studies of the nucleation of latex particles in a heterogeneous monomer−water system. The results of these studies made it possible to find conditions for the reproducible synthesis of monodisperse polystyrene latexes. In order to change the surface structure of latex particles, cetyl alcohol was dissolved in the initial monomer phase (styrene). The article presents the results of electron microscopic studies of the synthesized latexes. Nano crystals of this alcohol are clearly visible on the surface of the latex particles. It is suggested that, in deep monomer conversions, the process of crystallization of cetyl alcohol begins in polymer-monomer particles.

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非均相静态单体-水体系中乳胶颗粒的生成和相形成

这项工作的目的是寻找新的方法来合成具有特定大小和表面结构的胶乳（聚合物悬浮液）。这种胶乳的需求量并不大，但其开发和生产对高科技的发展极为重要。单分散胶乳在多种疾病的免疫学诊断中尤为重要。文章介绍了在异质单体-水体系中乳胶颗粒成核的研究结果。这些研究结果使我们找到了可重复合成单分散聚苯乙烯胶乳的条件。为了改变胶乳颗粒的表面结构，在初始单体相（苯乙烯）中溶解了十六烷基醇。文章介绍了合成胶乳的电子显微镜研究结果。在胶乳颗粒的表面可以清楚地看到这种醇的纳米晶体。这表明，在单体深度转化过程中，鲸蜡醇的结晶过程始于聚合物-单体颗粒。

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来源期刊

Colloid Journal 化学-物理化学

CiteScore

2.20

自引率

18.20%

发文量

审稿时长

6-12 weeks

期刊介绍： Colloid Journal (Kolloidnyi Zhurnal) is the only journal in Russia that publishes the results of research in the area of chemical science dealing with the disperse state of matter and surface phenomena in disperse systems. The journal covers experimental and theoretical works on a great variety of colloid and surface phenomena: the structure and properties of interfaces; adsorption phenomena and structure of adsorption layers of surfactants; capillary phenomena; wetting films; wetting and spreading; and detergency. The formation of colloid systems, their molecular-kinetic and optical properties, surface forces, interaction of colloidal particles, stabilization, and criteria of stability loss of different disperse systems (lyosols and aerosols, suspensions, emulsions, foams, and micellar systems) are also topics of the journal. Colloid Journal also includes the phenomena of electro- and diffusiophoresis, electro- and thermoosmosis, and capillary and reverse osmosis, i.e., phenomena dealing with the existence of diffusion layers of molecules and ions in the vicinity of the interface.