منابع مشابه
Piezoelectric Effect of Cellulose Nanocrystals Thin Films
Ultrathin films of aligned cellulose nanocrystals (CNCs) were assembled on mica supports by using electric field-assisted shear. The relationship between polarization gradients and strain mechanics of the obtained films was examined by monitoring their deflection with an atomic force microscope operated in contact mode. The piezoelectric response of the films was ascribed to the collective cont...
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Ultrathin films of cellulose were functionalized with iron protoporphyrin IX (FePP). Spin-coating allows the production of silylated cellulose films in a controlled way. Cellulose regeneration is achieved through the hydrolyzation of the silane groups, exposing the film to acidic vapors. To enhance the reactivity of the cellulose surface to the protoporphyrin, carbonyldiimidazole (CDI) was used...
متن کاملOptically tunable chiral nematic mesoporous cellulose films.
Demand for sustainable functional materials has never been larger. The introduction of functionality into pure cellulose might be one step forward in this field as it is one of the most abundant natural biopolymers. In this paper, we demonstrate a straightforward and scalable way to produce iridescent, mesoporous cellulose membranes with tunable colors and porosity. Concomitant assembly of cell...
متن کاملSulfated cellulose thin films with antithrombin affinity
Cellulose thin films were chemically modified by in situ sulfation to produce surfaces with anticoagulant characteristics. Two celluloses differing in their degree of polymerization (DP): CEL I (DP 215–240) and CEL II (DP 1300–1400) were tethered to maleic anhydride copolymer (MA) layers and subsequently exposed to SO3·NMe3 solutions at elevated temperature. The impact of the resulting sulfatio...
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Titanium dioxide (TiO2) is a well-studied photocatalyst that is known to break down organic molecules upon ultraviolet (UV) irradiation. Cellulose nanofibers (CNFs) act as an attractive matrix material for the suspension of photocatalytic particles due to their desirable mechanical and optical properties. In this work, TiO2–CNF composite films were fabricated and evaluated for photocatalytic ac...
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ژورنال
عنوان ژورنال: Sen'i Gakkaishi
سال: 1952
ISSN: 0037-9875,1884-2259
DOI: 10.2115/fiber.8.272