The Influence of Size and Surface Hydrophobicity of Latex Polymer Particles on the Physical and Mechanical Properties of Films

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

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2025-02-18 DOI:10.1134/S2070205124702071

T. R. Aslamazova, V. A. Kotenev, N. Yu. Lomovskaya

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Abstract

The physicomechanical and physicochemical properties of film-forming styrene-alkyl(meth)acrylic latex copolymers were studied depending on the size of the latex particles and the hydrophobicity of their surface, which are a consequence of the features of emulsion polymerization. Using the method of dynamic mechanical relaxation spectroscopy, an increase in the intensity of relaxation mobility of latex polymer macrochains with a decrease in particle size and the hydrophobicity of their surface was established. This is accompanied by a decrease in the glass transition temperature of the polymer, corresponding to the maximum intensity of α-relaxation. A comparison of the properties of polymer films before and after their modification was carried out. water-soluble phthalocyaninate. When the polymer was modified, an increase was found in glass transition temperatures and the maximum intensity of α-relaxation as a result of disruptions in relaxation of the homogeneity of the polymer material when localizing the modifier on the surface of latex particles in the interparticle regions of the films. The localization of phthalocyaninate on the polymer surface is confirmed by fluorescence data spectroscopy, indicating the appearance of fluorescence in the modified polymer and its absence in the modifier itself.

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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.