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Hydrolysis

Hydrolysis

Overview
Hydrolysis is a chemical reaction in which the addition of water breaks down a polymer into its simpler monomer units. For example, peptides break into amino acids, carbohydrates into simple sugars, and DNA into nucleotides. Enzymes often facilitate these processes.
Hydrolysis Reverses Dehydration Synthesis
Complex carbohydrates can be broken down by breaking the bonds between individual sugar units. The reaction breaks a glycosidic bond as water is added to the compound. The...

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Updated: Nov 14, 2025

Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification

Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification

Published on: April 7, 2017

Polymer-Water Interaction Enabled Intelligent Moisture Regulation in Hydrogels.

Yuxi Liu¹, Xiaowei Liu¹, Bo Duan²

¹MOE Key Laboratory of Hydrodynamic Transients, School of Power and Mechanical Engineering, Wuhan University, Wuhan, Hubei 430072, P. R. China.

The Journal of Physical Chemistry Letters

|March 10, 2021

Summary

This summary is machine-generated.

Certain hydrogels exhibit self-regulating moisture transfer, adapting to humidity by altering internal water bonding. This discovery offers insights into hydrogel behavior for diverse applications.

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Last Updated: Nov 14, 2025

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Published on: February 27, 2016

Area of Science:

Materials Science
Polymer Chemistry
Physical Chemistry

Background:

Water-vapor transition is crucial for hydrogel applications.
Understanding polymer-water interactions and structure's role in this transition is challenging.

Purpose of the Study:

To investigate the moisture transfer behaviors of hydrogels under varying humidity.
To elucidate the mechanisms behind hydrogel self-regulation in response to humidity changes.

Main Methods:

Experimental testing of hydrogel moisture transfer at different relative humidities.
Molecular dynamics simulations to analyze water-polymer interactions and bonding.
Correlation analysis between hydrogel self-regulation and mechanical properties (Young's modulus).

Main Results:

Identified hydrogels that can lower surface vapor pressure to prevent dehydration at low humidity.
Observed hydrogels absorbing ambient moisture to recover their initial state at high humidity.
Demonstrated that increased intermolecular bonding of water within hydrogels during evaporation leads to self-regulation.
Established a strong correlation between this self-regulation and the hydrogel's Young's modulus.

Conclusions:

Hydrogel self-regulation of water-vapor transition is linked to enhanced intermolecular water bonding.
Young's modulus is a key factor influencing hydrogel self-regulation capabilities.
Findings provide mechanistic insights into hydrogel water transport and suggest potential for advanced applications.