{"title":"Using a Thermodynamic Model of Adsorption to Describe the Behavior of Salts of Modified Humic Acid in Surface Layers","authors":"M. I. Rogatko, S. L. Khil’ko","doi":"10.1134/S003602442470290X","DOIUrl":null,"url":null,"abstract":"<p>A mathematical model of polymolecular adsorption developed for protein solutions at liquid–gas interfaces (V.B. Fainerman, R. Miller, et al.) is used to describe experimental concentration dependences of the change in the equilibrium surface tension and viscoelastic modulus of aqueous solutions of salts of modified humic acids and hymatomelanic acids. It is shown that experimental data are in satisfactory agreement with theoretical estimates. The polymolecular adsorption model of natural polyelectrolytes for solutions of salts of modified humic acids is used to identify correspondence between experimental data and theoretical calculations for bimolecular adsorption, and for the trimolecular adsorption of macromolecules from solutions of salts of hymatomelanic acids at interfaces with air.</p>","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"98 14","pages":"3365 - 3371"},"PeriodicalIF":0.8000,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Journal of Physical Chemistry A","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1134/S003602442470290X","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
A mathematical model of polymolecular adsorption developed for protein solutions at liquid–gas interfaces (V.B. Fainerman, R. Miller, et al.) is used to describe experimental concentration dependences of the change in the equilibrium surface tension and viscoelastic modulus of aqueous solutions of salts of modified humic acids and hymatomelanic acids. It is shown that experimental data are in satisfactory agreement with theoretical estimates. The polymolecular adsorption model of natural polyelectrolytes for solutions of salts of modified humic acids is used to identify correspondence between experimental data and theoretical calculations for bimolecular adsorption, and for the trimolecular adsorption of macromolecules from solutions of salts of hymatomelanic acids at interfaces with air.
在液气界面为蛋白质溶液开发了一个多分子吸附的数学模型（V.B. Fainerman， R. Miller等人），用于描述修饰腐植酸和膜黑酸盐水溶液的平衡表面张力和粘弹性模量变化的实验浓度依赖性。结果表明，实验数据与理论估计符合得很好。利用天然聚电解质对改性腐植酸盐溶液的多分子吸附模型，确定了双分子吸附的实验数据与理论计算的一致性，以及膜黑素酸盐溶液在空气界面上对大分子的三分子吸附。
期刊介绍：
Russian Journal of Physical Chemistry A. Focus on Chemistry (Zhurnal Fizicheskoi Khimii), founded in 1930, offers a comprehensive review of theoretical and experimental research from the Russian Academy of Sciences, leading research and academic centers from Russia and from all over the world.
Articles are devoted to chemical thermodynamics and thermochemistry, biophysical chemistry, photochemistry and magnetochemistry, materials structure, quantum chemistry, physical chemistry of nanomaterials and solutions, surface phenomena and adsorption, and methods and techniques of physicochemical studies.
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