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  11. Dual-responsive Gradient Structured Actuator Via Photopolymerization-induced Diffusion

Dual-Responsive Gradient Structured Actuator via Photopolymerization-Induced Diffusion

Duygu Sezen Polat1, Vera E Buurman1, Dirk J Mulder2

  • 1Department of Chemical Engineering and Chemistry - lab of Human Interactive Materials (HIM), Eindhoven University of Technology, Eindhoven, 5600 MB, Netherlands.

Chemistry (Weinheim an Der Bergstrasse, Germany)
|March 8, 2024

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View abstract on PubMed

Summary
This summary is machine-generated.

Researchers developed a novel thin film with a controlled cross-link gradient for stimuli-responsive applications. This dual-responsive material bends with light or solvent exposure, offering new possibilities for soft robotics and sensors.

Area of Science:

  • Materials Science
  • Soft Robotics
  • Polymer Chemistry

Background:

  • Stimuli-responsive materials are crucial for soft robotics, sensors, and biomimetic devices.
  • Bilayer structures are common but suffer from stress points at connection areas.

Purpose of the Study:

  • To develop a facile method for fabricating stimuli-responsive thin films with controlled cross-link variation.
  • To create a dual-responsive material overcoming limitations of bilayer structures.

Main Methods:

  • Fabrication of a thin film with a cross-link gradient via polymerization-induced diffusion in a thiol-ene network.
  • Achieving light actuation through photothermal effects with incorporated dye.
  • Inducing solvent actuation via anisotropic swelling.
Keywords:
bioinspiredgradient structurepolymerresponsive material

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Main Results:

  • The developed film exhibits bending deformation in response to light and chemical solvents.
  • Demonstrated dual responsiveness through controlled cross-link variation.
  • Showcased potential for complex deformations via photopatterning during fabrication.

Conclusions:

  • The novel fabrication method provides a versatile platform for creating advanced stimuli-responsive materials.
  • The dual-responsive film offers a promising alternative to traditional bilayer structures for soft robotics and sensors.
  • Patterning capabilities allow for tailored complex deformations for specific applications.
swelling