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

21 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 - Aug 15 2013

Fingerprint

Bromine
Carbon nanofibers
Electrospinning
Molecular structure
Hydrogen
Substitution reactions
Solubility
Polymerization
Molecules
Temperature
carbon fiber
n-hexane
naphthalene
2-methylnaphthalene

All Science Journal Classification (ASJC) codes

  • Organic Chemistry

Cite this

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

In: Current Organic Chemistry, Vol. 17, No. 13, 15.08.2013, p. 1463-1468.

Research output: Contribution to journalArticle

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. / Preparation of novel isotropic pitch with high softening point and solvent solubility for pitch-based electrospun carbon nanofiber. In: Current Organic Chemistry. 2013 ; Vol. 17, No. 13. pp. 1463-1468.
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AU - Yang, Kap Seung

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