Supramolecular Plastics Processed from Small Molecule-based Coacervates

Jingjing Yu , Da'wei Qi , Ermei Mäkilä, Lippo Lassila, Anastassios C. Papageorgiou, Markus Peurla, Jessica Rosenholm, Zhao Zhao, Pekka K. Vallittu, Sirpa Jalkanen, Chunman Jia, Jianwei Li*

*Corresponding author for this work

Research output: Working paperScientific

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Abstract

Supramolecular polymers self-assembled by small molecules are a type of new material with adaptive and biocompatible properties. However, the mechanical property of these materials is always weak, impeding their applications in practice. Here, we reported that coacervation can be used to explore robust and stable bulk materials without the compromise of responsiveness. The liquid-liquid separation process could sequester and concentrate solutes, which facilitated the non-covalent association of building blocks equipped with multiple binding sites and resulted in bulk materials with versatile properties that were highly related to the encapsulated water amounts. It was a robust plastic with a remarkable Young’s modulus of 139.53  4.74 MPa when the water content was about 5% while became adhesive and could instantly self-heal with more absorbed water. Moreover, the material was reusable and fully recyclable. Our findings suggest that coacervation offers a promising approach to constructing bulk materials using small molecules and new possibilities for the application of supramolecular chemistry.
Original languageEnglish
PublisherChemRxiv
DOIs
Publication statusAccepted/In press - 24 Jan 2022
MoE publication typeD4 Published development or research report or study

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