Preparation of Novel Isotropic Pitch with High Softening Point and Solvent Solubility for Pitch-based Electrospun Carbon Nanofiber

作者：Kim Byung Jun; Kil Hyunsig; Watanabe Naoki; Seo Min Hyun; Kim Bo Hye; Yang Kap Seung; Kato Osamu; Miyawaki Jin; Mochida Isao; Yoon Seong Ho^*

来源：Current Organic Chemistry, 2013, 17(13): 1463-1468.

DOI：10.2174/1385272811317130013

• Pitch
• 2-methylnaphthalene
• Bromination
• Dehydrobromination
• Electrospinning
• Carbon nanofiber
• Meltspinning
• Carbon fiber

The novel isotropic pitch that exhibits both high solvent solubility (100% soluble in THF) and a high softening point (over 200 degrees C) was successfully synthesized by the bromination of 2-methylnaphthalene followed by dehydrobromination/polymerization and extraction in n-hexane to eliminate lighter constituents. The molecular structure of the pitch was relatively linear with flexible methylene cross-linkages between naphthalene molecules. During bromination, a reaction temperature of 180 degrees C was necessary to induce bromine substitution of methyl hydrogen. Methylene cross-linkages were formed after the dehydrobromination reaction. The obtained pitch is a suitable precursor for electrospinning and meltspinning to prepare carbon nanofibers and carbon fibers, respectively.

• 出版日期2013-7