Supramolecular Diblock Copolymers Featuring Well-defined Telechelic Building Blocks

Elizabeth Elacqua, Anna Croom, Kylie B. Manning, Scott K. Pomarico, Diane Lye, Lauren Young, Marcus Weck

Research output: Contribution to journalArticle

Abstract

We report supramolecular AB diblock copolymers comprised of well-defined telechelic building blocks. Helical motifs, formed via reversible addition-fragmentation chain-transfer (RAFT) or anionic polymerization, are assembled with coil-forming and sheet-featuring blocks obtained via atom-transfer radical polymerization (ATRP) or ring-opening metathesis polymerization (ROMP). Interpolymer hydrogen bonding or metal-coordination achieves dynamic diblock architectures featuring hybrid topologies of coils, helices, and/or π-stacked sheets that, on a basic level, mimic protein structural motifs in fully synthetic systems. The intrinsic properties of each block (e.g., circular dichroism and fluorescence) remain unaffected in the wake of self-assembly. This strategy to develop complex synthetic polymer scaffolds from functional building blocks is significant in a field striving to produce architectures reminiscent of biosynthesis, yet fully synthetic in nature. This is the first plug-and-play approach to fabricate hybrid π-sheet/helix, π-sheet/coil, and helix/coil architectures via directional self-assembly.

Original languageEnglish (US)
Pages (from-to)15873-15878
Number of pages6
JournalAngewandte Chemie - International Edition
Volume55
Issue number51
DOIs
StatePublished - Jan 1 2016

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Keywords

  • block copolymers
  • self-assembly
  • supramolecular chemistry
  • supramolecular polymers

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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