Effects of radical initiators, polymerization inhibitors, and other agents on the sonochemical unzipping of double-walled carbon nanotubes

Minoru Fukumori, Shinnosuke Hara, Takuji Ogawa, Hirofumi Tanaka

Research output: Contribution to journalArticle

Abstract

The mechanism of graphene nanoribbon synthesis by the sonication-assisted unzipping of carbon nanotubes (CNTs) was investigated utilizing 4-methoxyphenol and 1,4-dimethoxybenzene as moieties of poly[(m-phenylenevinylene)-co-(2,5-dioctoxy-p-phenylenevinylene)]. The obtained results revealed that unzipping was promoted by 4-methoxyphenol owing to the facile abstraction of its phenolic hydrogen by sonication-generated radicals on CNTs, whereas 1,4-dimethoxybenzene did not facilitate unzipping, since its methoxy hydrogens were hardly abstracted. Moreover, unzipping was also facilitated by trans-stilbene, the double bond of which reacts with CNT radicals. Furthermore, we succeeded in using a general radical initiator, namely, 2,2′-azobis[2-(2-imidazolin-2-yl)propane]dihydrochloride to promote unzipping, confirming that it is promoted by radical donors/trapping agents.

Original languageEnglish
Article number03ED01
JournalJapanese Journal of Applied Physics
Volume57
Issue number3
DOIs
Publication statusPublished - 2018 Mar 1
Externally publishedYes

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initiators
inhibitors
Carbon nanotubes
Sonication
polymerization
carbon nanotubes
Polymerization
Nanoribbons
Hydrogen
stilbene
hydrogen
Propane
propane
Graphene
graphene
trapping
synthesis

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Effects of radical initiators, polymerization inhibitors, and other agents on the sonochemical unzipping of double-walled carbon nanotubes. / Fukumori, Minoru; Hara, Shinnosuke; Ogawa, Takuji; Tanaka, Hirofumi.

In: Japanese Journal of Applied Physics, Vol. 57, No. 3, 03ED01, 01.03.2018.

Research output: Contribution to journalArticle

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