| 초록 |
Pyrolysis fuel oil (PFO) is a promising candidate to be utilized as petroleum pitches for carbon materials. We have researched effects of low molecular weight components in PFO onto carbonization behavior of resulting pitches prepared by thermal treatments. Molecular weight distribution of PFO has been selectively adjusted by series of pre-heat treatment methods. After pre-treatment, the PFO has been synthesized by thermal polymerization under various conditions. Once the pitches were synthesized, carbonization experiments of the pitches were conducted, and resulting materials were characterized according to the traditional manner; softening point measurement, EA, NMR, MALDI-TOF analysis. Molecular weight distributions and chemical structure were investigated by MALDI-TOF and solid-state 13C-NMR. Thermal properties and C/H atomic ratio were measured by thermogravimetric analysis and elemental analysis. |
