Relaxation Behavior of Latex Acrylate Polymers. 1. The Effect of Polymerization Factors. 1.2. Statistical and Seed Polymers

IF 1.1 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2025-03-09 DOI:10.1134/S2070205124702332

T. R. Aslamazova, V. A. Kotenev, V. A. Lomovskoi

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Abstract

Chemical structures and relaxation behavior of polyacrylates synthesized using statistical and seed emulsion copolymerization methods were compared, taking into account their relaxation behavior in the glass-transition temperature range and at negative temperatures in the range from –150 to 0°C. To clarify the difference in the relaxation structures of both polymers, the effect of a water-soluble modifier on the main and local dissipative processes is considered. The relaxation microuniformity of the statistical and seed polymers is determined, taking into account also the effect of the modifier on the spectrum of internal friction of latex polymers of various polymerization structures. A theoretical approach to the assessment of the relaxation microuniformity of latex polymers is proposed based on the choice of a function for describing the dissipative processes occurring in latex polymers and its correlation with experimental data.

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乳胶丙烯酸酯聚合物的弛豫行为。聚合因素的影响。统计和种子聚合物

比较了统计法和种子乳液共聚法合成的聚丙烯酸酯的化学结构和弛豫行为，考虑了它们在玻璃化转变温度范围内和负温度范围内（-150 ~ 0°C）的弛豫行为。为了阐明两种聚合物弛豫结构的差异，考虑了水溶性改性剂对主耗散过程和局部耗散过程的影响。测定了统计聚合物和种子聚合物的弛豫微均匀性，同时考虑了改性剂对不同聚合结构乳胶聚合物内摩擦谱的影响。提出了一种评价胶乳聚合物弛豫微均匀性的理论方法，该方法基于描述胶乳聚合物中发生的耗散过程的函数的选择及其与实验数据的相关性。

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来源期刊

Protection of Metals and Physical Chemistry of Surfaces 工程技术-冶金工程

CiteScore

1.90

自引率

18.20%

发文量

审稿时长

4-8 weeks

期刊介绍： Protection of Metals and Physical Chemistry of Surfaces is an international peer reviewed journal that publishes articles covering all aspects of the physical chemistry of materials and interfaces in various environments. The journal covers all related problems of modern physical chemistry and materials science, including: physicochemical processes at interfaces; adsorption phenomena; complexing from molecular and supramolecular structures at the interfaces to new substances, materials and coatings; nanoscale and nanostructured materials and coatings, composed and dispersed materials; physicochemical problems of corrosion, degradation and protection; investigation methods for surface and interface systems, processes, structures, materials and coatings. No principe restrictions exist related systems, types of processes, methods of control and study. The journal welcomes conceptual, theoretical, experimental, methodological, instrumental, environmental, and all other possible studies.