Shundo Atsuomi, Yamamoto Satoru, Tanaka Keiji
Department of Applied Chemistry and Center for Polymer Interface and Molecular Adhesion Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
JACS Au. 2022 Jun 9;2(7):1522-1542. doi: 10.1021/jacsau.2c00120. eCollection 2022 Jul 25.
Epoxy resins are used in various fields in a wide range of applications such as coatings, adhesives, modeling compounds, impregnation materials, high-performance composites, insulating materials, and encapsulating and packaging materials for electronic devices. To achieve the desired properties, it is necessary to obtain a better understanding of how the network formation and physical state change involved in the curing reaction affect the resultant network architecture and physical properties. However, this is not necessarily easy because of their infusibility at higher temperatures and insolubility in organic solvents. In this paper, we summarize the knowledge related to these issues which has been gathered using various experimental techniques in conjunction with molecular dynamics simulations. This should provide useful ideas for researchers who aim to design and construct various thermosetting polymer systems including currently popular materials such as vitrimers over epoxy resins.
环氧树脂广泛应用于涂料、胶粘剂、模塑料、浸渍材料、高性能复合材料、绝缘材料以及电子器件的封装和包装材料等众多领域。为了获得所需性能，有必要更好地了解固化反应中涉及的网络形成和物理状态变化如何影响最终的网络结构和物理性能。然而，由于它们在较高温度下不熔以及在有机溶剂中不溶，这并非易事。在本文中，我们总结了通过各种实验技术结合分子动力学模拟所积累的与这些问题相关的知识。这应该为旨在设计和构建各种热固性聚合物体系的研究人员提供有用的思路，这些体系包括目前比环氧树脂更流行的材料，如 Vitrimers。
