A healable supramolecular polymer blend based on aromatic π-π Stacking and hydrogen-bonding interactions

Stefano Burattini, Barnaby W. Greenland, Daniel Hermida Merino, Wengui Weng, Jonathan Seppala, Howard M. Colquhoun, Wayne Hayes, Michael E. MacKay, Ian W. Hamley, Stuart J. Rowan

Research output: Contribution to journalArticle

418 Citations (Scopus)

Abstract

An elastomeric, healable, supramolecular polymer blend comprising a chain-folding polyimide and a telechelic polyurethane with pyrenyl end groups is compatibilized by aromatic π-π stacking between the π-electron- deficient diimide groups and the π-electron-rich pyrenyl units. This interpolymer interaction is the key to forming a tough, healable, elastomeric material. Variable-temperature FTIR analysis of the bulk material also conclusively demonstrates the presence of hydrogen bonding, which complements the π-π stacking interactions. Variable-temperature SAXS analysis shows that the healable polymeric blend has a nanophase-separated morphology and that the X-ray contrast between the two types of domain increases with increasing temperature, a feature that is repeatable over several heating and cooling cycles. A fractured sample of this material reproducibly regains more than 95% of the tensile modulus, 91% of the elongation to break, and 77% of the modulus of toughness of the pristine material.

Original languageEnglish
Pages (from-to)12051-12058
Number of pages8
JournalJournal of the American Chemical Society
Volume132
Issue number34
DOIs
Publication statusPublished - 2010 Sep 1
Externally publishedYes

Fingerprint

Polymer blends
Hydrogen Bonding
Hydrogen bonds
Polymers
Temperature
Electrons
Polyurethanes
Fourier Transform Infrared Spectroscopy
Heating
Regain
X-Rays
Polyimides
Toughness
Elongation
Elastic moduli
Cooling
X rays
elastomeric

ASJC Scopus subject areas

  • Chemistry(all)
  • Catalysis
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Burattini, S., Greenland, B. W., Merino, D. H., Weng, W., Seppala, J., Colquhoun, H. M., ... Rowan, S. J. (2010). A healable supramolecular polymer blend based on aromatic π-π Stacking and hydrogen-bonding interactions. Journal of the American Chemical Society, 132(34), 12051-12058. https://doi.org/10.1021/ja104446r

A healable supramolecular polymer blend based on aromatic π-π Stacking and hydrogen-bonding interactions. / Burattini, Stefano; Greenland, Barnaby W.; Merino, Daniel Hermida; Weng, Wengui; Seppala, Jonathan; Colquhoun, Howard M.; Hayes, Wayne; MacKay, Michael E.; Hamley, Ian W.; Rowan, Stuart J.

In: Journal of the American Chemical Society, Vol. 132, No. 34, 01.09.2010, p. 12051-12058.

Research output: Contribution to journalArticle

Burattini, S, Greenland, BW, Merino, DH, Weng, W, Seppala, J, Colquhoun, HM, Hayes, W, MacKay, ME, Hamley, IW & Rowan, SJ 2010, 'A healable supramolecular polymer blend based on aromatic π-π Stacking and hydrogen-bonding interactions', Journal of the American Chemical Society, vol. 132, no. 34, pp. 12051-12058. https://doi.org/10.1021/ja104446r
Burattini, Stefano ; Greenland, Barnaby W. ; Merino, Daniel Hermida ; Weng, Wengui ; Seppala, Jonathan ; Colquhoun, Howard M. ; Hayes, Wayne ; MacKay, Michael E. ; Hamley, Ian W. ; Rowan, Stuart J. / A healable supramolecular polymer blend based on aromatic π-π Stacking and hydrogen-bonding interactions. In: Journal of the American Chemical Society. 2010 ; Vol. 132, No. 34. pp. 12051-12058.
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