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Catenane Crosslinked Mechanically Adaptive Polymer Gel.

Hao Xing1, Zhengtao Li1, Zi Liang Wu2

  • 1State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance and Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310027, P. R. China.

Macromolecular Rapid Communications
|August 11, 2017
PubMed
Summary
This summary is machine-generated.

Researchers developed an adaptive polymer gel using a novel catenane crosslinker. This smart material can reversibly switch between tough and soft states when exposed to environmental stimuli.

Keywords:
catenaneintercomponent hydrogen bondingmechanically adaptivepolymer gel

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Area of Science:

  • Polymer Chemistry
  • Materials Science
  • Supramolecular Chemistry

Background:

  • Adaptive polymer gels offer unique responses to environmental changes.
  • Stimuli-responsive materials are crucial for advanced applications.
  • Catenane structures present opportunities for designing responsive crosslinkers.

Purpose of the Study:

  • To introduce a new strategy for preparing an adaptive polymer gel.
  • To utilize a stimuli-responsive catenane crosslinker for gel preparation.
  • To investigate the gel's adaptability to environmental stimuli.

Main Methods:

  • Employing the thiol-ene "click" reaction for polymer gel synthesis.
  • Using a bisvinyl [2]catenane as a stimuli-responsive crosslinker.
  • Incorporating a poly(ethylene glycol) derivative with multiple thiol groups.

Main Results:

  • The synthesized gel exhibits unique adaptability to environmental stimuli.
  • The catenane crosslinker's responsiveness stems from intercomponent hydrogen bonding (IHB).
  • The gel can be reversibly switched between tough and soft states.

Conclusions:

  • A novel adaptive polymer gel was successfully prepared.
  • Intercomponent hydrogen bonding in the catenane crosslinker enables stimuli-responsiveness.
  • The developed gel demonstrates potential for tunable mechanical properties.