Tuning the Architecture of Cellulose Nanocrystal–Poly(allylamine hydrochloride) Multilayered Thin Films: Influence of Dipping Parameters

Autor: Nicolas Delorme, Bernard Cathala, Céline Moreau, Nadège Beury
Přispěvatelé: Université Lille 2 - Faculté de Médecine, inconnu, Inconnu, Institut des Molécules et Matériaux du Mans (IMMM), Le Mans Université (UM)-Centre National de la Recherche Scientifique (CNRS), Unité de recherche sur les Biopolymères, Interactions Assemblages (BIA), Institut National de la Recherche Agronomique (INRA), Le Mans Université (UM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Materials science
ADSORPTION
Inorganic chemistry
AZOCHROMOPHORE-FUNCTIONALIZED POLYELECTROLYTES
02 engineering and technology
CATIONIC POLYELECTROLYTES
010402 general chemistry
01 natural sciences
POLYSACCHARIDES
Adsorption
QUARTZ-CRYSTAL MICROBALANCE
Electrochemistry
Polyamines
General Materials Science
Thin film
Cellulose
ASSEMBLED FILMS
Spectroscopy
DISSIPATION
ComputingMilieux_MISCELLANEOUS
Bilayer
Membranes
Artificial
Surfaces and Interfaces
Quartz crystal microbalance
021001 nanoscience & nanotechnology
Condensed Matter Physics
Polyelectrolyte
0104 chemical sciences
Nanocrystal
Ionic strength
IONIC-STRENGTH
Nanoparticles
MICROFIBRILLATED CELLULOSE
0210 nano-technology
BY-LAYER DEPOSITION
Layer (electronics)
[PHYS.COND.CM-SCM]Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft]
Zdroj: Langmuir
Langmuir, American Chemical Society, 2012, 28 (28), pp.10425-10436. ⟨10.1021/la301293r⟩
ISSN: 0743-7463
1520-5827
DOI: 10.1021/la301293r⟩
Popis: International audience; Multilayered thin films consisting of alternating cationic polyelectrolyte, poly(allylamine hydrochloride) (PAR), and anionic cellulose nanocrystals (CNs) were constructed using the dipping procedure by screening different experimental parameters: the drying step between each layer adsorption, the dipping time, the ionic strength of the PAH solution, and the concentration of CM dispersion. We showed that the drying process and the ionic strength of PAR solution were crucial parameters for the successful construction of 8-bilayer films. Film thickness is mainly influenced by dipping time and CN concentration when using the dipping procedure without drying. Two architectures of adsorbed CN layers-a single or a double layer of CNs-were revealed on the basis of the thickness increment per bilayer, depending on experimental conditions. The layer adsorption process was investigated in real-time using quartz crystal microbalance with dissipation (QCM-D) experiments in an aqueous environment or by incorporating a drying step. On the basis of in situ construction of PAH-CN films in wet media, QCM-D data were indicative of highly hydrated films for which the progressive layer stacking is disturbed or prevented. QCM-D monitoring of CNs and PAH layer adsorption was monitored by incorporating a drying process. The impact of experimental parameters on PAH-CN multilayered construction and on CN layer configuration is discussed. This study offers new opportunities for tailoring the architecture of CN-based multilayer films.
Databáze: OpenAIRE
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