Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 43, Issue 16, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.202200083
Keywords
degradation; dynamic covalent bonds; polymeric materials; stress relaxation; synergistic effects
Categories
Funding
- National Natural Science Foundation of China [21734006]
- Foundation for Innovative Research Groups of the National Natural Science Foundation of China [21821001]
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Dynamic covalent bonds in polymeric materials show synergistic effects and can enhance their dynamic properties.
In both natural and artificial functional systems, the cooperation between different dynamic interactions is of vital importance for realizing complicated functions. Dynamic covalent bonds are one kind of relatively stable dynamic interactions and have shown synergistic effect in natural systems such as functional proteins. However, synergistic interactions between different dynamic covalent bonds in polymeric materials are still unclear. Herein, polymeric materials containing diselenide and imine bonds are prepared, and then the synergistic effect between the two dynamic covalent bonds is quantitatively evaluated in typical processes of dynamic materials. The results reveal that dynamic covalent bonds show weak synergistic effect in the degradation process and have strong synergistic effect in stress relaxation process. Therefore, introducing multiple dynamic covalent bonds in polymeric materials can extensively enhance their dynamic properties.
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