NIR photothermal activation in epoxy/anhydride systems for advanced polymerization
Year: 2024
Type: article
Abstract: Photopolymerization is an important area of investigation due to its wide industrial applications; however, it generally employs quite energetic UV or near UV light to initiate the formation of the polymer. Even though it is very effective and offers several advantages, numerous drawbacks are also encountered such as low light penetration, harmfulness of wavelengths in the UV range and the use of photoinitiators that can be hazardous to health. In this context, many researchers have focused their interest in improving the spatial localization and the temporal control of the polymerization under safer irradiation wavelengths (NIR). In this work, we have successfully produced polyester thermosets by the reaction of epoxy resins with anhydride in the presence of a thermolatent N -Heterocyclic carbene generator using the NIR photothermal effect of a dye (heater) able to convert low-energetic NIR light into heat.
Source: European Polymer Journal
Institutions: Centre National de la Recherche Scientifique, Université de Haute-Alsace, Institut de Sciences des Matériaux de Mulhouse, Université de Strasbourg, École Nationale Supérieure de Chimie de Montpellier, Université de Montpellier, Institut Charles Gerhardt Montpellier, Aix-Marseille Université, Institut de Chimie Radicalaire
Language: English
Subfield: Organic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,170
Funder: Agence Nationale de la Recherche
OpenAlex ID: W4404645728