Influence of Thermal Prehistory on the Thermophysical and Viscoelastic Properties of Aqueous Gels of Sulfonated Polyphenylquinoxaline

IF 1.6 4区化学 Q4 CHEMISTRY, PHYSICAL

Colloid Journal Pub Date : 2026-08-14 DOI:10.1134/S1061933X26600260

V. G. Vasiliev, M. I. Buzin, G. G. Nikiforova, N. M. Belomoina, E. G. Bulycheva

引用次数: 0

Abstract

This work examines the specific response of aqueous sulfonated polyphenylquinoxaline gels to temperature field exposure. This response manifests itself as an exothermic effect, the position of which in the temperature scale depends on the gel thermal prehistory. The observed exothermic effect is not associated with a phase transition; its manifestation requires the presence of a spatial network structure containing both free and bound solvent. This phenomenon is likely to be caused by relaxation-type exchange processes between the free solvent and the gel network. The influence of the free solvent redistribution in the network of the gel on its thermophysical and viscoelastic properties has been determined.

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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.