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August 7, 2026Liquid Crystals

Ageing of thermomechanical and elastocaloric response of liquid crystalline elastomers

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Authors

MMMatic MorganARAndraž RešetičZKZdravko Kutnjak

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Overview

Randomized trial assessed elastocaloric performance in liquid crystalline elastomers, suggesting robustness for heat management.

Key Points

  • This research aims to evaluate the long-term thermomechanical stability and elastocaloric performance of main-chain liquid-crystalline elastomers.
  • Evaluated monodomain samples with varying crosslink densities.
  • Used a custom extensometer for 1,000,000 stretch-retract cycles to measure strain, stress, and temperature.
  • Assessed the effects of cycling on elastocaloric response and transition temperatures.
  • Mechanical fatigue remained low with no cracking or delamination observed.
  • Elastocaloric temperature change increased gradually, reaching steady state after several thousand cycles.
  • N-I transition temperature decreased by approximately 13 K, indicating network relaxation under load.

Cite This Study

Morgan et al. (2026) studied this question.

synapsesocial.com/papers/6a758bef847ab6d26c01f8a3https://doi.org/10.1080/02678292.2026.2712559
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