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Methanol-detection by acrylate-based composite polymer film actuation
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DOI：10.1016/j.optmat.2026.117946.png)
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Abstract
En 中文
We demonstrate a proof-of-concept approach for VOC detection based on the mechanical bending of acrylatebased composite polymer films. Under ambient conditions, methanol vapours induce a rapid and reversible defor-mation of the film, which is optically observable and quantitatively described through a viscoelastic three-parameter solid model coupled to pseudo-first-order adsorption kinetics. The bending response differs markedly between methanol, water, and mixed vapours, revealing a strong dependence on sur-face adsorption dynamics. The acrylate backbone is identified as the active sensing layer, capable of transducing molecular interactions into macroscopic deflection. These findings establish acrylate polymers as a simple, low-cost platform for passive VOC-responsive materials and highlight their potential for future development into calibrated sensing devices.
Keywords:
Volatile organic compounds (VOCs)
Polymer-film actuator
Sensors
Photo-mobile polymer films
PMPs
Methanol-responsive bending
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