Abstract
Hydrogen bonds(H-bonds)are the most essential non-covalent interactions in nature,playing a crucial role in stabilizing the sec-ondary structures of proteins.Taking inspiration from nature,researchers have developed several multiple H-bonds crosslinked supramolecular polymer materials through the incorporation of H-bond side-chain units into the polymer chains.N-acryloyl glycinamide(NAGA)is a monomer with dual amides in the side group,which facilitates the formation of multiple dense intermolecular H-bonds within poly(N-acryloyl glycinamide)(PNAGA),thereby exhibiting diverse properties dependent on concentration and meeting various requirements across different applications.Moreover,numerous attempts have been undertaken to synthesize diverse NAGA-derived units through meticulous chemical structure regula-tion and fabricate corresponding H-bonding crosslinked supramolecular polymer materials.Despite this,the systematic clarification of the im-pact of chemical structures of side moieties on intermolecular associations and material performances remains lacking.The present review will fo-cus on the design principle for synthesizing NAGA-derived H-bond side-chain units and provide an overview of the recent advancements in mul-tiple H-bonds crosslinked PNAGA-derived supramolecular polymer materials,which can be categorized into three groups based on the chemical structure of H-bonds units:(1)monomers with solely cooperative H-bonds;(2)monomers with synergistic H-bonds and other physical interac-tions;and(3)diol chain extenders with cooperative H-bonds.The significance of subtle structural variations in these NAGA-derived units,en-abling the fabrication of hydrogen-bonded supramolecular polymer materials with significantly diverse performances,will be emphasized.More-over,the extensive applications of multiple H-bonds crosslinked supramolecular polymer materials will be elucidated.
维普
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