Extremely Soft, Conductive, and Transparent Ionic Gels by 3D Optical Printing

Kumkum Ahmed, Naofumi Naga, Masaru Kawakami, Hidemitsu Furukawa

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A series of 3D printable multifunctional ionic gels (IGs) are developed incorporating ionic liquid (IL) in the thiol–ene network of thiol-based end-crosslinker and acrylate monomers. The resulted gels, termed as thiol-ionic gels (T-IGs), are highly transparent and very soft with IL content of 70–85 wt%. The mechanical and conductive properties of the T-IGs are found to be largely dependent on the IL content, end-crosslinker functionalities, and chain-length of monomers. Progression of ionic conductivity is observed with an increase in IL content and conductivity as high as 5.40 mS cm−1 is attained for longer acrylate group containing T-IGs at room temperature, while further increase is observed at elevated temperature. T-IGs in all systems are found to exhibit superior thermal stability. Three-dimensional fabrication of these functional T-IGs is achieved by optical 3D printing process with microscale resolution in facile steps.

Original languageEnglish
Article number1800216
JournalMacromolecular Chemistry and Physics
DOIs
Publication statusAccepted/In press - 2018 Jan 1

Fingerprint

printing
Printing
Sulfhydryl Compounds
thiols
Gels
Ionic Liquids
gels
Ionic liquids
liquids
acrylates
monomers
Monomers
Ionic conductivity
Chain length
progressions
microbalances
ion currents
Thermodynamic stability
thermal stability
mechanical properties

Keywords

  • 3D printing
  • ionic liquids
  • multifunctional ionic gels
  • thiol–ene reaction

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

Cite this

Extremely Soft, Conductive, and Transparent Ionic Gels by 3D Optical Printing. / Ahmed, Kumkum; Naga, Naofumi; Kawakami, Masaru; Furukawa, Hidemitsu.

In: Macromolecular Chemistry and Physics, 01.01.2018.

Research output: Contribution to journalArticle

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