AFM imaging and nanoindentation of polymer of intrinsic microporosity PIM-1

Katarzyna Polak-Krasna, Carlos Fuhrhop, Sebastien Rochat, Andrew D. Burrows, Anthimos Georgiadis, Chris R. Bowen, Timothy J. Mays

Research output: Contribution to journalArticle (Academic Journal)peer-review

11 Citations (Scopus)
167 Downloads (Pure)


Polymers of intrinsic microporosity (PIMs) have promising gas adsorption properties for potential applications such as incorporation into high-pressure hydrogen storage tanks in an effort to increase the storage capacity or decrease the operating pressure. Such applications require detailed mechanical characterisation and determination of the structure-properties relationships to enable optimisation of the interface between the polymer and the tank. In this study, we show that Atomic Force Microscopy (AFM) nanoindentation can be used to determine the elastic modulus of cast PIM-1 films and that this property is depth-dependent. Average values of elastic modulus obtained experimentally were 1.87 GPa and are compared with elastic tensile modulus and storage tensile modulus obtained in previous studies. In addition, Scanning Electron Microscopy (SEM) and AFM imaging was performed to investigate the surface structure of the cast PIM-1 film, which has been shown to be highly granular.
Original languageEnglish
Pages (from-to)23915-23919
Number of pages5
JournalInternational Journal of Hydrogen Energy
Issue number37
Early online date11 May 2017
Publication statusPublished - 14 Sept 2017


  • AFM nanoindentation
  • Polymer of intrinsic microporosity
  • Mechanical characterisation
  • Hydrogen storage
  • PIM-1


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