title: Role of Cellulose Nanocrystals on the Microstructure of Maleic Anhydride Plasma Polymer Thin Films.
abstract: Recently, it was shown that the microstructure of a maleic anhydride plasma polymer (MAPP) could be tailored ab initio by adjusting the plasma process parameters. In this work, we aim to investigate the ability of cellulose nanocrystals (CNCs) to induce topographical structuration. Thus, a new approach was designed based on the deposition of MAPP on CNCs model surfaces. The nanocellulosic surfaces were produced by spin-coating the CNC suspension on a silicon wafer substrate and on a hydrophobic silicon wafer substrate patterned with circular hydrophilic microsized domains (diameter of 86.9 ± 4.9 μm), resulting in different degrees of CNC aggregation. By depositing the MAPP over these surfaces, it was possible to observe that the surface fraction of nanostructures increased from 20% to 35%. This observation suggests that CNCs can act as nucleation points resulting in more structures, although a critical density of the CNCs is required.
authors.affiliation: †Chair of Forest Biomaterials, Faculty of Environment and Natural Resources, University of Freiburg, Werthmannstrasse 6, Freiburg 79098, Germany.|‡Freiburg Materials Research Center (FMF), University of Freiburg, Stefan-Meier-Strasse 21, Freiburg 79104, Germany.
authors.forename: Michel M
authors.initials: MM
authors.lastname: Brioude
authors.affiliation: §Institut de Science de Matériaux de Mulhouse CNRS UMR7361, Université de Haute-Alsace, 15 rue Jean Starcky, PB 2488, Mulhouse Cedex 68057, France.
authors.forename: Vincent
authors.initials: V
authors.lastname: Roucoules
authors.affiliation: §Institut de Science de Matériaux de Mulhouse CNRS UMR7361, Université de Haute-Alsace, 15 rue Jean Starcky, PB 2488, Mulhouse Cedex 68057, France.
authors.forename: Hamidou
authors.initials: H
authors.lastname: Haidara
authors.affiliation: §Institut de Science de Matériaux de Mulhouse CNRS UMR7361, Université de Haute-Alsace, 15 rue Jean Starcky, PB 2488, Mulhouse Cedex 68057, France.
authors.forename: Laurent
authors.initials: L
authors.lastname: Vonna
authors.affiliation: †Chair of Forest Biomaterials, Faculty of Environment and Natural Resources, University of Freiburg, Werthmannstrasse 6, Freiburg 79098, Germany.|‡Freiburg Materials Research Center (FMF), University of Freiburg, Stefan-Meier-Strasse 21, Freiburg 79104, Germany.
authors.forename: Marie-Pierre
authors.initials: MP
authors.lastname: Laborie
keywords: cellulose nanocrystals; maleic anhydride; patterned surface; plasma polymerization; spin-coating