NIR photothermal activation in epoxy/anhydride systems for advanced polymerization

IF 5.8 2区化学 Q1 POLYMER SCIENCE

European Polymer Journal Pub Date : 2024-11-23 DOI:10.1016/j.eurpolymj.2024.113589

Rania Rejeb , Philibert Lenormand , Gaspard Bichot , Didier Gigmes , Frédéric Dumur , Michael Schmitt , Julien Pinaud , Jacques Lalevée

引用次数: 0

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.

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环氧/酸酐体系在高级聚合中的近红外光热活化

由于其广泛的工业应用，光聚合是一个重要的研究领域；然而，它通常使用相当有能量的紫外线或近紫外线来引发聚合物的形成。尽管它非常有效，并提供了一些优点，但也遇到了许多缺点，例如光穿透性低，紫外线范围内波长的危害以及使用可能对健康有害的光引发剂。在此背景下，许多研究人员将注意力集中在提高聚合的空间定位和在更安全的辐照波长下的时间控制上。在这项工作中，我们利用染料（加热器）的近红外光热效应将低能量的近红外光转化为热量，通过环氧树脂与酸酐的反应，成功地生产了聚酯热固性聚酯。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

European Polymer Journal 化学-高分子科学

CiteScore

9.90

自引率

10.00%

发文量

691

审稿时长

23 days

期刊介绍： European Polymer Journal is dedicated to publishing work on fundamental and applied polymer chemistry and macromolecular materials. The journal covers all aspects of polymer synthesis, including polymerization mechanisms and chemical functional transformations, with a focus on novel polymers and the relationships between molecular structure and polymer properties. In addition, we welcome submissions on bio-based or renewable polymers, stimuli-responsive systems and polymer bio-hybrids. European Polymer Journal also publishes research on the biomedical application of polymers, including drug delivery and regenerative medicine. The main scope is covered but not limited to the following core research areas: Polymer synthesis and functionalization • Novel synthetic routes for polymerization, functional modification, controlled/living polymerization and precision polymers. Stimuli-responsive polymers • Including shape memory and self-healing polymers. Supramolecular polymers and self-assembly • Molecular recognition and higher order polymer structures. Renewable and sustainable polymers • Bio-based, biodegradable and anti-microbial polymers and polymeric bio-nanocomposites. Polymers at interfaces and surfaces • Chemistry and engineering of surfaces with biological relevance, including patterning, antifouling polymers and polymers for membrane applications. Biomedical applications and nanomedicine • Polymers for regenerative medicine, drug delivery molecular release and gene therapy The scope of European Polymer Journal no longer includes Polymer Physics.