Molecular Orientation Driven Enhancement of Thermal and Mechanical Properties in Liquid Crystalline Epoxy Resins
발표자
홍지애 (경북대학교 기능성유기재료연구실)
연구책임자
여현욱 (경북대학교)
공동저자
홍지애 (경북대학교 기능성유기재료연구실), 구교선 (경북대학교), 여현욱 (경북대학교)
초록
내용
Liquid crystalline epoxy resins (LCEs) are attractive materials that exhibit outstanding mechanical properties, high thermal stability, and enhanced thermal conductivity arising from strong intermolecular interactions. Owing to their molecular architecture, LCEs can develop diverse orientation, and the resulting orientation structures and degrees of alignment give rise to a wide range of tunable properties and functionalities.In this study, we report a novel LCE system via anionic ring-opening polymerization. The liquid crystalline (LC) monomers were designed to incorporate aliphatic spacers, enabling the formation of well-ordered LC orientations during the curing process. The effects of spacer chain length on the molecular orientation and resulting properties of the LCEs were systematically investigated. Moreover, the enhanced intermolecular interactions arising from molecular alignment improved phonon transport pathway, leading to a significant increase in thermal conductivity.