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Abstract <p>In this work, the dynamic behavior of polyvinylpyrrolidone (PVP) hydrogel (2%) over time from the moment of dilution was studied using the dynamic light scattering (DLS) method. The stability of the dynamic characteristics, the persistent presence of a power-law component in the autocorrelation function (ACF) of scattered light intensity, and the appearance of artifactual relaxation times when using an exponential expansion program for the ACF were demonstrated. The fractal dimension of the PVP gel was determined to be <i>D</i><sub><i>f</i></sub> = 1.81.</p>

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Investigation of Polyvinylpyrrolidone Gel Dynamics by Dynamic Light Scattering (DLS)

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年12月1日

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  • M. N. Kirichenko,
  • O. A. Legonkova,
  • M. T. Mahamadiev,
  • L. L. Chaikov

摘要

Abstract

In this work, the dynamic behavior of polyvinylpyrrolidone (PVP) hydrogel (2%) over time from the moment of dilution was studied using the dynamic light scattering (DLS) method. The stability of the dynamic characteristics, the persistent presence of a power-law component in the autocorrelation function (ACF) of scattered light intensity, and the appearance of artifactual relaxation times when using an exponential expansion program for the ACF were demonstrated. The fractal dimension of the PVP gel was determined to be Df = 1.81.