# Simple model for the kinetics of stimuli-responsive gels with porous structures

Source: [Simple model for the kinetics of stimuli-responsive gels with porous structures](<https://www.sota2.com/research/paper/68fa47861e209131ce928965>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-25T06:22:22.830Z

Authors: Yuhei Yamada, Shingo Maeda

Published: 2024-02-19T17:24:35.000Z

## Abstract

Stimuli-responsive gels are the gels that vary the volume depending on environmental conditions. It has been reported that the stimuli-responsive gel with an inhomogeneous structure exhibits faster volume change than the gel without it. It is understood as a difference in the transfer dynamics of the solvent, though, there are few models for discussing the effect of inhomogeneity explicitly. In this paper, we propose a simple model for the kinetics of volume change by introducing inhomogeneity as the probability distribution for a random variable that characterizes the structure. Under this framework, we demonstrate that inhomogeneity actually increases the rate of volume change. Furthermore, through analysis of a simplified example, we show that some features that are often seen in experiments can be reproduced by the model. This model provides a simple equation for the time series of volume change that can be used to characterize the experimental data based on a simple physical picture of the phenomenon.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/2402.12301>)

[PDF](<https://arxiv.org/pdf/2402.12301.pdf>)