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Multiple Responsiveness of Polymer Actuators.

Ziyue Yang1, Wei Huang1, Lidong Zhang1

  • 1School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, P. R. China.

Macromolecular Rapid Communications
|July 14, 2022
PubMed
Summary
This summary is machine-generated.

Researchers developed a novel polymer material that enhances light sensitivity using a low concentration of photosensitive components. This breakthrough enables advanced soft actuators and smart materials with improved performance and safety.

Keywords:
actuatorsin situ swellingphotohardeningsmart polymers

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Area of Science:

  • Polymer Chemistry
  • Materials Science
  • Photochemistry

Background:

  • Increasing photosensitivity in polymers often requires high concentrations of photosensitive moieties, which can be toxic.
  • This limits the practical application of photosensitive polymers in real-world scenarios.

Purpose of the Study:

  • To develop a protocol for enhancing polymer photosensitivity using a low content of photosensitive moieties.
  • To create polymer-based soft actuators with rapid light response and multiple functionalities.

Main Methods:

  • Combining photosensitive monomers with hygroscopic monomers to create a synergistic effect.
  • Investigating the polymer's response to light irradiation, considering both structural isomerization and photothermal effects.

Main Results:

  • Achieved rapid light response in polymer-based soft actuators with only 2.6 mol% photosensitive moieties.
  • Demonstrated synergistic action between photosensitive and hygroscopic units, enhancing overall photosensitivity.

Conclusions:

  • The developed protocol effectively enhances polymer photosensitivity at extremely low concentrations of photosensitive moieties.
  • The resulting polymers exhibit multiple responsiveness (acidochromism, humidity, photohardening, shape memory, photochromism, swelling), enabling applications in sensing systems, information transmission, and artificial muscles.