Kinetically Controlled Sequential Growth of Surface-Grafted Chiral Supramolecular Copolymers

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DOI

  • Hendrik Frisch, Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster, Correnstrasse 40, 48149, Münster, Germany., Johannes Gutenberg-University Mainz, Tyskland
  • Eva-Corinna Fritz, Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster, Correnstrasse 40, 48149, Münster, Germany.
  • ,
  • Friedrich Stricker, Johannes Gutenberg-Universität Mainz
  • ,
  • Lars Schmüser, Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany.
  • ,
  • Daniel Spitzer, Johannes Gutenberg-Universität Mainz
  • ,
  • Tobias Weidner
  • Bart Jan Ravoo, Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster, Correnstrasse 40, 48149, Münster, Germany. b.j.ravoo@uni-muenster.de.
  • ,
  • Pol Besenius, Johannes Gutenberg-Universität Mainz

We report a facile strategy to grow supramolecular copolymers on Au surfaces by successively exposing a surface-anchored monomer to solutions of oppositely charged peptide comonomers. Charge regulation on the active chain end of the polymer sufficiently slows down the kinetics of the self-assembly process to produce kinetically trapped copolymers at near-neutral pH. We thereby achieve architectural control at three levels: The β-sheet sequences direct the polymerization away from the surface, the height of the supramolecular copolymer brushes is well-controlled by the stepwise nature of the alternating copolymer growth, and 2D spatial resolution is realized by using micropatterned initiating monomers. The programmable nature of the resulting architectures renders this concept attractive for the development of customized biomaterials or chiral interfaces for optoelectronics and sensor applications.

OriginalsprogEngelsk
TidsskriftAngewandte Chemie International Edition
Vol/bind55
Nummer25
Sider (fra-til)7242-7246
Antal sider5
ISSN1433-7851
DOI
StatusUdgivet - 2016
Eksternt udgivetJa

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