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One-Pot Synthesis of Melt-Processable Supramolecular Soft Actuators.

Sean J D Lugger1, Dirk J Mulder1, Albertus P H J Schenning1,2

  • 1Stimuli-responsive Functional Materials and Devices, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands.

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Summary
This summary is machine-generated.

Researchers developed melt-processable supramolecular soft actuators using a one-pot synthesis. These reprogrammable actuators exhibit large deformations and can be recycled into various 3D shapes.

Keywords:
hydrogen bondsliquid crystalssegmented copolymerssoft actuatorssupramolecular polymers

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Area of Science:

  • Polymer Science
  • Materials Science
  • Robotics

Background:

  • Reprocessable and reprogrammable soft actuators are crucial for advanced applications.
  • Current limitations include synthetic complexity, 3D shaping difficulties, and small deformation ranges.

Purpose of the Study:

  • To develop melt-processable supramolecular soft actuators with enhanced reprocessability and reprogrammability.
  • To achieve large deformations and versatile 3D shaping capabilities.

Main Methods:

  • Utilized a one-pot sequential thiol addition reaction with commercially available building blocks.
  • Synthesized segmented copolymers incorporating thiourethane and liquid crystal segments.
  • Exploited supramolecular cross-links for material recycling and reprogramming.

Main Results:

  • Achieved melt-processable supramolecular soft actuators with immediate, reversible responses.
  • Demonstrated significant weightlifting capabilities and large deformations up to 32%.
  • Successfully recycled and reprogrammed the material into 3D actuators and welded assemblies with varied deformation modes.

Conclusions:

  • Presented a straightforward, one-pot synthesis for melt-processable supramolecular soft actuators.
  • Enabled actuators with large deformations, reprocessability, and reprogrammability into arbitrary 3D shapes.
  • Paved the way for advanced soft robotics and adaptable material systems.