Synthesis and Characterization of Polyacrylonitrile via Electron Beam
발표자
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초록
내용
Polyacrylonitrile (PAN) is the most general precursor of carbon fibers. PAN-based fibers have excellent strength and modulus to replace metals using on aerospace, sports equipment, construction materials and automobile. Commonly, PAN has been synthesized via radical polymerization such as solution polymerization and suspension polymerization with initiator which is residual reagents in termination reaction. Electron beam (E-beam) is constant electron flow operated by beam accelerator. E-beam polymerization has short processing time, no initiator, low cost, and environmentally friendly. In this study PAN was polymerized depend on three monomer (acrylonitrile, methyl acrylate and itaconic acid) ratio and irradiation dose via E-beam without initiator. E-beam polymerized PAN was characterized with DSC, TGA, FT-IR and 1H-NMR to confirm various properties of PAN terpolymer. [This study was supported by Korea national university of transportation in 2022]