title: Effects of Electron Beam Irradiation on the Electrospinning of Polyacrylonitrile.
abstract: Electron beam (e-beam) irradiation of polyacrylonitrile (PAN) was performed to investigate the effects of radiation on the electrospinning process. For this study, polyacrylonitrile powder was subjected to e-beam irradiation with different doses of up to 100 kGy under an N2 atmosphere. Polymer solutions were prepared by dissolving PAN in N,N-dimethyl-formamide (DMF) at a 1:9 ratio by weight. The prepared PAN/DMF solutions showed different colors with different e-beam doses. The resulting structures in solutions contained conjugated C=N bonds, which caused the observed color formation. In addition, the conductivity of the PAN/DMF solution increased with an increase in e-beam irradiation dose. In the DSC spectra of electrospun PAN fibers, the peak temperature of the exothermic reactions was observed to decrease with an increase in the e-beam irradiation strength.
authors.forename: Joon-Pyo
authors.initials: JP
authors.lastname: Jeun
authors.forename: Hyun-Bin
authors.initials: HB
authors.lastname: Kim
authors.forename: Seung-Hwan
authors.initials: SH
authors.lastname: Oh
authors.forename: Jung-Ki
authors.initials: JK
authors.lastname: Park
authors.forename: Phil-Hyun
authors.initials: PH
authors.lastname: Kang