Film formation, roughness, wetting, and patterning from polymer blends are often investigated, but frictional properties are less extensively studied. We extend the fundamental understanding of spin coated complex cellulose blend films via revealing their surface friction using Friction Force Microscopy (FFM). Two cellulose derivatives were transformed into two-phase blend films and adjusting the volume fraction of the spin coating solution resulted in variation of the surface fraction of hydrophilic and hydrophobic film component. The film morphology was affected by lateral and vertical separation resulting in roughness variation of the blend films from 1.1 to 19.8 nm depending on the film composition. Friction analysis revealed that the friction coefficient of the films could be tuned and the blend films exhibited lowered friction force coefficient compared to the single-component films.

Design of friction, morphology and wetting by cellulose blend thin film composition

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

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.