Polymerization of Mesogenic Dienes based on Thiol-Ene System
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초록
내용
Among thiol-based reactions, radical-mediated thiol-ene reaction drags special interest due to normally providing a high yield and proceeding inoffensive by-products. In this research, the polymerization of multifunctional thiols and enes will be investigated under thermal curing conditions. Firstly, we successfully synthesized liquid crystalline allyl monomers from biphenol as a mesogenic ingredient. Subsequently, 1H-NMR spectroscopy, differential scanning calorimetry, and polarized optical microscopy measurements were performed to analyze functional groups, phase transition behaviors and mesophase texture, respectively. To tailor target polymer networks, poly-functional thiols and di-functional enes were thermally polymerized in the presence of an organic peroxide serving as a pertinent free-radical initiator. The cured resins exhibit favorable mechanical and thermal properties, in which their thermal conductivity are about two times higher than those of conventional thermosets.