Multi-responsive and tough hydrogels based on triblock copolymer micelles as multi-functional macro-crosslinkers

Area of Science:

• Materials Science
• Polymer Chemistry

Background:

• Developing advanced hydrogels with tunable properties is crucial for various applications.
• Stimuli-responsive materials offer dynamic control over material behavior.

Purpose of the Study:

• To synthesize novel multi-stimuli responsive, positively charged hydrogels.
• To investigate the mechanical properties and responsiveness of the synthesized hydrogels.

Main Methods:

• Utilized self-assembled nanomicelles of Pluronic F127 diacrylate as macro-crosslinkers.
• In situ copolymerization with acrylamide and a quaternized acrylate monomer.
• Evaluated mechanical strength, toughness, fatigue resistance, and stimuli-responsiveness (pH, ionic strength).

Main Results:

• Successfully synthesized positively charged hydrogels with high strength and toughness.
• Demonstrated outstanding fatigue resistance in the developed hydrogels.
• Confirmed reversible responsiveness to pH and ionic strength variations.

Conclusions:

• The novel hydrogel system offers a promising platform for advanced materials.
• The combination of mechanical robustness and multi-stimuli responsiveness is advantageous.
• Potential applications in areas requiring dynamic and durable soft materials.