The study of the initial stage of heterophase polymerization of MMA in the presence of water-insoluble oxyethylated pluronic RPE3110

IF 2.9 4区化学 Q3 CHEMISTRY, PHYSICAL

Colloid and Polymer Science Pub Date : 2026-06-09 DOI:10.1007/s00396-026-05660-3

G. A Romanenko, I. A Gritskova, I. D Kovtun, V. P Zubov, A. I Lvovskii, A. M Shulgin, S. M Levachev, S. A Gusev, M. M Ilyin, A. L Vasiliev, Y. M Chesnokov, S. N Chvalun

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Abstract

This work presents the results of a comprehensive study of the initial stage of heterophase polymerization of methyl methacrylate in the presence of water-insoluble oxyethylated polypropylene glycol (pluronic RPE3110). Using methods of dilatometry, static light scattering, gel permeation chromatography, and electron microscopy (cryo-TEM, SEM), the kinetics of the process, changes in the disperse composition of the monomer emulsion and polymer suspension, and the molecular weight characteristics of the polymer were studied in the range of conversion from 3% to 98%. It was established that at the initial stage, polymerization proceeds simultaneously via emulsion and suspension mechanisms. For the first time, it was shown that the polymer particles formed at the early stages exhibit surface activity (reducing the interfacial tension at the toluene/water interface to 24 mN/m) and can participate in the dispersion of the larger monomer droplets resulting in the formation of a suspension with a narrow particle size distribution.

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水不溶性氧乙基化pluronic RPE3110存在下MMA异相聚合初始阶段的研究

本文介绍了在不溶于水的氧乙基化聚丙烯乙二醇（pluronic RPE3110）存在下甲基丙烯酸甲酯异相聚合初始阶段的综合研究结果。采用膨胀法、静态光散射法、凝胶渗透色谱法和电子显微镜（冷冻透射电镜、扫描电镜）等方法，研究了该过程的动力学、单体乳液和聚合物悬浮液的分散组成的变化以及聚合物在3% ~ 98%转化率范围内的分子量特性。在初始阶段，聚合通过乳液和悬浮机制同时进行。研究首次表明，早期形成的聚合物颗粒具有表面活性（将甲苯/水界面的界面张力降低至24 mN/m），并能参与较大单体液滴的分散，从而形成粒径分布较窄的悬浮液。

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来源期刊

Colloid and Polymer Science 化学-高分子科学

CiteScore

4.60

自引率

4.20%

发文量

111

审稿时长

2.2 months

期刊介绍： Colloid and Polymer Science - a leading international journal of longstanding tradition - is devoted to colloid and polymer science and its interdisciplinary interactions. As such, it responds to a demand which has lost none of its actuality as revealed in the trends of contemporary materials science.