2-phenylimidazole as a primary curing agent for high-temperature epoxy applications abstract: 2-phenylimidazole (2-pi) has emerged as a significant latent curing agent for epoxy resins, particularly in high-temperature applications. this article provides a comprehensive overview of 2-pi as a primary curing agent, focusing on its synthesis, curing mechanism, advantages, limitations, formulation considerations, product parameters, and performance...