Facile Supramolecular Processing of Carbon Nanotubes and Polymers for Electromechanical Sensors

Chae Bin Kim, Ki Beom Jeong, Beom Joo Yang, Jong Won Song, Bon Cheol Ku, Seunghyun Lee, Seoung Ki Lee, Chiyoung Park

Research output: Contribution to journalArticlepeer-review

40 Scopus citations

Abstract

We herein report a facile, cost-competitive, and scalable method for producing viscoelastic conductors via one-pot melt-blending using polymers and supramolecular gels composed of carbon nanotubes (CNTs), diphenylamine (DP), and benzophenone (BP). When mixed, a non-volatile eutectic liquid (EL) produced by simply blending DP with BP (1:1 molar ratio) enabled not only the gelation of CNTs (EL-CNTs) but also the dissolution of a number of commodity polymers. To make use of these advantages, viscoelastic conductors were produced via one-pot melt-blending the EL and CNTs with a model thermoplastic elastomer, poly(styrene-b-butadiene-b-styrene) (SBS, styrene 30 wt %). The resulting composites displayed an excellent electromechanical sensory along with re-mendable properties. This simple method using cost-competitive EL components is expected to provide an alternative to the use of expensive ionic liquids as well as to facilitate the fabrication of novel composites for various purposes.

Original languageEnglish
Pages (from-to)16180-16185
Number of pages6
JournalAngewandte Chemie - International Edition
Volume56
Issue number51
DOIs
StatePublished - 18 Dec 2017

Bibliographical note

Publisher Copyright:
© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords

  • carbon nanotubes
  • electromechanical sensors
  • eutectic liquid
  • supramolecular gel
  • viscoelastic conductor

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