Nanocellulose networks often exhibit high surface areas with tunable porosity which can be useful for capturing solute and gas molecules as well as other discrete particles. Water and water vapor present challenges for such usage because it affects the porosity of any cellulose network and their excessive presence may, in the worst case, destroy the integrity of the whole network. Yet water molecules in the nanocellulose network can also be seen as an advantage, in very much the same way as water acts as an integral component in plants, modifying the mechanical properties, and altering the adsorption performance, for example. The utilization of water in artificial cellulose constructions, however, requires careful fundamental research on cellulose/water interactions and the influence of water on gas adsorption. This contribution presents a collection of fundamental results on precisely such phenomena. The experimental template consists of ultrathin films of nanocellulose where the morphology has been reduced to the level of a 2D network and changes due to water and vapor sorption are effortless to monitor with various surface sensitive analytical tools. The results constitute the first steps towards understanding the role of water in a cellulose network that is deliberately built for particle capturing purposes.<br/>

Thin films of nanocellulose: Interactions with water, vapor, and gases

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.