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Functional Molecular Granular Materials: Advances and Perspectives.

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Summary

Molecular granular materials (MGMs), built from molecular clusters (MCs), show unique properties like tunable viscoelasticity and impact resistance. Their small size enables novel applications in advanced materials.

Keywords:
Impact resistanceMolecular granular materialsRelaxation dynamicsSub-nanoscale particleTopological interaction

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Polymer Science

Background:

  • Molecular granular materials (MGMs) utilize sub-nanoscale molecular clusters (MCs) as building blocks.
  • MGMs exhibit unique functionalities beyond traditional granular materials.

Purpose of the Study:

  • To summarize the development and recent advances in MGMs.
  • To cover synthesis, dynamics, viscoelasticity, impact resistance, and proton conductivity of MGMs.

Main Methods:

  • Precise synthesis of MC assemblies with specific topologies.
  • Characterization of hierarchical relaxation dynamics.
  • Evaluation of tuneable viscoelasticity, impact resistance, and proton conductivity.

Main Results:

  • Extremely small MC size leads to bulk diffusive dynamics and dominant surface structures.
  • Hierarchical relaxation dynamics and broadly tuneable viscoelasticity observed.
  • MGMs demonstrate potential as impact-resistant materials and proton conductors.

Conclusions:

  • MGMs offer a new class of materials with tunable properties.
  • The unique characteristics of MCs drive the advanced functionalities of MGMs.
  • MGMs show promise for applications requiring high performance and tunability.