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Updated: Apr 18, 2026

Laser Micromachining for Polymer Surface Topography Design
Published on: September 19, 2025
Laser-assisted high-pressure-induced polymerization of 2-(hydroxyethyl)methacrylate
E Evlyukhin1, L Museur, M Traore
1Laboratoire de Physique des Lasers, CNRS, Université Paris 13 , Sorbonne Paris Cité, 93430 Villetaneuse, France.
Abstract:
We report on a successful room-temperature polymerization of 2-(hydroxyethyl)methacrylate (HEMA) under high pressure. The polymerization is observed in a limited range of pressures 0.1 to 1.6 GPa without the use of any initiator. When the compressed sample is irradiated at 488 or 355 nm by a laser, the polymerization reaction rate is increased by a factor of 10 or 30, respectively. Moreover, the shift of the laser wavelength to the UV improves the polymerization yield of the recovered sample to 84%. The catalysis of the polymerization process by light results from a one-photon-assisted electron transfer to π* antibonding states of the monomer molecule. The observed polymerization is irreversible and almost complete, which makes this synthesis process suitable for applications.
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