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Updated: Feb 14, 2026
09:39
Injectable Supramolecular Polymer-Nanoparticle Hydrogels for Cell and Drug Delivery Applications
Published on: February 7, 2021
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Epoxy polymers as versatile hydrophobic components for tough phase-separated hydrogels
Qiuyue Chen1, Yuwei Long1, Shumin Li1
1The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), State Key Laboratory of Advanced Polymer Materials, National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China. xushimei@scu.edu.cn.
Materials Horizons
|February 13, 2026
Summary
This study introduces novel epoxy polymers (EPI) for creating tough, phase-separated hydrogels. These advanced materials exhibit tunable mechanical properties and shape-memory effects, overcoming hydrophilicity-hydrophobicity challenges.
Area of Science:
- Materials Science
- Polymer Chemistry
- Biomaterials Engineering
Background:
- Hydrogels face challenges integrating hydrophobic elements due to inherent hydrophilicity.
- Controlled phase separation is crucial for advanced hydrogel properties.
Purpose of the Study:
- To develop a versatile hydrophobic component for phase-separated hydrogels.
- To design tough, multi-functional hydrogels with tailored properties.
Main Methods:
- Fabrication of non-covalent bond crosslinked hydrogels using hydrophobic epoxy polymers (EPI) with polar groups.
- Utilizing water-induced phase separation and glass transition of EPI for microphase separation.
- Incorporating hydrophilic polymers like polyacrylic acid or polyvinylpyrrolidone.
Main Results:
- Achieved exceptional mechanical properties: 14.15 MPa tensile strength and 295.87 MPa Young's modulus.
- Demonstrated temperature-tunable mechanical properties due to EPI's high glass transition temperature.
- Imparted shape-memory functionality to the hydrogels.
Conclusions:
- Introduced a versatile hydrophobic component for phase-separated hydrogel design.
- Provided a new strategy for creating tough and multi-functional hydrogels.
- Highlighted the potential of EPI in advanced hydrogel applications.
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