Hydrogen-Bonded Supramolecular Polymer Adhesives: Straightforward Synthesis and Strong Substrate Interaction

Angew Chem Int Ed Engl. 2022 Jul 4;61(27):e202203876. doi: 10.1002/anie.202203876. Epub 2022 May 3.

Abstract

High-performance adhesives are of great interest in view of industrial demand. We herein identify a straightforward synthetic strategy towards universal hydrogen-bonded (H-bonded) polymeric adhesives, using a side-chain barbiturate (Ba) and Hamilton wedge (HW) functionalized copolymer. Starting from a rubbery copolymer containing thiolactone derivatives, Ba and HW moieties are tethered as pendant groups via an efficient one-pot two-step amine-thiol-bromo conjugation. Hetero-complementary Ba/HW interactions thus yield H-bonded supramolecular polymeric networks. In addition to an enhanced polymeric network integrity induced by specific Ba/HW association, the presence of individual Ba or HW moieties enables strong binding to a range of substrates, outstanding compared to commercial glues and reported adhesives.

Keywords: Amine-Thiol-Bromo Conjugation; Hydrogen Bonds; Self-Assembly; Supramolecular Polymeric Adhesives.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adhesives*
  • Chemical Phenomena
  • Hydrogen
  • Hydrogen Bonding
  • Polymers* / chemistry

Substances

  • Adhesives
  • Polymers
  • Hydrogen