Preparation of novel isotropic pitch with high softening point and solvent solubility for pitch-based electrospun carbon nanofiber

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

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

The novel isotropic pitch that exhibits both high solvent solubility (100% soluble in THF) and a high softening point (over 200°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 180oC 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.

Original languageEnglish
Pages (from-to)1463-1468
Number of pages6
JournalCurrent Organic Chemistry
Volume17
Issue number13
DOIs
Publication statusPublished - 2013

All Science Journal Classification (ASJC) codes

  • Organic Chemistry

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