The versatile catalytic surface-modification of nacre-mimetic nanocomposites is disclosed. The utilization of metal-free catalysis allows for designing tailor-made surfaces of cellulose nanofibrils/clays nanocomposite with different functional groups and properties (hydrophobicity). The catalytic surface-engineering is mild and no significant structural changes were observed after the functionalization of the nacre-mimetic nanocomposites, which also kept their important mechanical properties. Several functional groups (e.g. allyl, phenyl, allyl, aminopropyl, alkyl) were attached. The contact angles of the corresponding modified nanocomposites were high and when constructing the surface with thiapropyl groups it became as high as when fabricating the surface with perfluoroalkyl groups.   <br/> <br/>

Catalytic surface engineering for highly functionalized and water-resistant nacre-mimetic cellulose nanofibrils/clay nanocomposites

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

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