Synthesis and gas permeability of highly elastic poly(dimethylsiloxane)/graphene oxide composite elastomers using telechelic polymers

Heonjoo Ha, Jaesung Park, Ki Ryong Ha, Benny D. Freeman, Christopher J. Ellison

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

This study illustrates that amine functional groups on the ends of telechelic poly(dimethylsiloxane) (PDMS) can undergo post-processing reactions with surface epoxy groups on graphene oxide (GO) to form a robust elastomer during simple heating. In these materials, GO acts both as a nanofiller which reinforces the mechanical properties and participates as a multifunctional crosslinker, thereby promoting elastic properties. Experiments indicate that the telechelic PDMS/GO elastomer is highly crosslinked (e.g., more than 75 wt % is a non-dissolving crosslinked gel) but highly flexible such that it can be stretched up to 300% of its original length. Finally, the PDMS/GO elastomer was tested as a single gas barrier membrane and gas permeability was decreased ∼45% by incorporating 1 wt % (0.43 vol %) of GO, thereby highlighting its potential use in practical applications.

Original languageEnglish (US)
Pages (from-to)53-60
Number of pages8
JournalPolymer
Volume93
DOIs
StatePublished - Jun 14 2016

Bibliographical note

Funding Information:
The authors gratefully acknowledge the partial financial support from the Welch Foundation (grant #F-1709 ) and the Korea CCS R&D Center (KCRC) grant funded by the Ministry of Science, ICT & Future Planning from the Korean government (grant #2015M1A8A1053569 ). We would also like to acknowledge the Kwanjeong Educational Foundation for their financial support of H. Ha.

Publisher Copyright:
© 2016 Elsevier Ltd. All rights reserved.

Keywords

  • Amine-epoxy reaction
  • Barrier membrane
  • Elastomer
  • Graphene oxide
  • Telechelic polymer

Fingerprint

Dive into the research topics of 'Synthesis and gas permeability of highly elastic poly(dimethylsiloxane)/graphene oxide composite elastomers using telechelic polymers'. Together they form a unique fingerprint.

Cite this