Strong and Tough Eutectogels with Broad‐Range Tunable Mechanical Properties via the Hydrogen Bond Network‐Specific Effect

Abstract Eutectogels represent promising materials for technological applications due to their excellent ionic conductivity, thermal and electrochemical stability, and nonvolatility. Nonetheless, most existing eutectogels suffer from low strength and toughness. Herein, a strategy to broadly alter the mechanical properties of eutectogels by tuning the aggregation states of polymer chains through the specific hydrogen bond network of a deep eutectic solvent is reported. The prepared eutectogels exhibit exceptional mechanical properties, including record‐breaking toughness (203.38 MJ m −3 ) and strength (31.53 MPa), outperforming even the toughest reported eutectogels and surpassing synthetic polymers such as…

• NN
  National Natural Science Foundation of China

  Awards: 21401100, 51401107, 52222104
• CP
  China Postdoctoral Science Foundation

  Award: 2015M571759
• NS
  Natural Science Foundation of Jiangsu Province

  Award: BK20191374
• JP
  Jiangsu Planned Projects for Postdoctoral Research Funds

  Award: 1402007A
• FR
  Fundamental Research Funds for the Central Universities

  Award: 30916011346