Hydrophobicity Control in Adaptive Crystalline Assemblies

Erez Cohen, Yahel Soffer, Haim Weissman, Tatyana Bendikov, Yaelle Schilt, Uri Raviv, Boris Rybtchinski

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

An amphiphile based on polyethylene glycol (PEG) polymer and two molecular moieties (perylene diimide and C7 fluoroalkyl, PDI and C7F) attached to its termini assembles into crystalline films with long-range order. The films reversibly switch from crystalline to amorphous above the PEG melting temperature. The adaptive behavior stems from the responsiveness of the PEG domain and the robustness of the PDI and C7F assemblies. The hydrophobicity of the film can be controlled by heating, resulting in switching from highly hydrophobic to superhydrophilic. The long-range order, reversible crystallinity switching, and the temperature-controlled wettability demonstrate the potential of block copolymer analogues based on simple polymeric/molecular hybrids.

Original languageEnglish
Pages (from-to)8871-8874
Number of pages4
JournalAngewandte Chemie - International Edition
Volume57
Issue number29
DOIs
Publication statusPublished - Jul 16 2018

    Fingerprint

Keywords

  • crystalline assemblies
  • hydrophobic effect
  • perylene diimides
  • self-assembly
  • supramolecular materials

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

Cite this

Cohen, E., Soffer, Y., Weissman, H., Bendikov, T., Schilt, Y., Raviv, U., & Rybtchinski, B. (2018). Hydrophobicity Control in Adaptive Crystalline Assemblies. Angewandte Chemie - International Edition, 57(29), 8871-8874. https://doi.org/10.1002/anie.201801912