Journal ArticleDOI
Cellulose nanofibers prepared by TEMPO-mediated oxidation of native cellulose
TLDR
Never-Dried and once-dried hardwood celluloses were oxidized by a 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO)-mediated system, and highly crystalline and individualized cellulose nanofibers, dispersed in water, were prepared by mechanical treatment of the oxidized celluloses/water slurries.About:
This article is published in Biomacromolecules.The article was published on 2007-07-13. It has received 2017 citations till now. The article focuses on the topics: Oxidized cellulose & Cellulose.read more
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Analyzing TEMPO-Oxidized Cellulose Fiber Morphology: New Insights into Optimization of the Oxidation Process and Nanocellulose Dispersion Quality
Jaka Levanič,Jaka Levanič,Vladimira Petrovič Šenk,Peter Nadrah,Ida Poljanšek,Primož Oven,Antti Haapala +6 more
TL;DR: In this paper, high-definition automated optical analysis was used to observe the morphological changes of bleached hardwood dissolving pulp during oxidation mediated by (2,2,6,6-tetramethylpiperidn-1-yl)oxyl (TE...
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Ternary composites of nanocellulose, carbonanotubes and ionic liquids as new extractants for direct immersion single drop microextraction.
TL;DR: This work proposed for the first time the use of Nanocellulose into a single drop for extracting and preconcentrating a heterocyclic amine (HCA) in fried food by the simple direct immersion SDME technique.
Journal ArticleDOI
Greener synthesis of nanofibrillated cellulose using magnetically separable TEMPO nanocatalyst
TL;DR: In this paper, a nanofibrillated cellulose was synthesized by magnetically separable 4-oxo-2,2,6, 6,6 tetramethylpiperidine-1 oxyl (TEMPO) mediated oxidation and mechanical disintegration of wood pulp.
Journal ArticleDOI
Improved thermal stability of cellulose nanofibrils using low-concentration alkaline pretreatment
TL;DR: A new pretreatment method using a low-concentration alkaline solution to produce well-dispersed CNFs with improved thermal stability is developed, which can create new opportunities for the development of CNF-based bio-composites and electronics.
Journal ArticleDOI
Elucidating Dynamics of Precoordinated Ionic Bridges as Sacrificial Bonds in Interpenetrating Network Hydrogels
TL;DR: In this paper, the role of precoordinated CNF-PEG dynamic complexes in the IPN hydrogels viscoelastic dynamics was explored, and the results showed that the ionic complexes significantly improved the energy dissipation and elastic recovery properties, leading to strain-rate dependent mechanics and notable enhancement in tensile toughness.
References
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Journal ArticleDOI
Self-assembly at all scales.
TL;DR: Self-assembling processes are common throughout nature and technology and involve components from the molecular to the planetary scale and many different kinds of interactions.
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Nanometre diameter fibres of polymer, produced by electrospinning
Darrell H. Reneker,Iksoo Chun +1 more
TL;DR: More than 20 polymers, including polyethylene oxide, nylon, polyimide, DNA, polyaramid, and polyaniline, have been electrospun in this paper.
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Homogeneous suspensions of individualized microfibrils from TEMPO-catalyzed oxidation of native cellulose.
TL;DR: Never-dried native celluloses (bleached sulfite wood pulp, cotton, tunicin, and bacterial cellulose) were disintegrated into individual microfibrils after oxidation mediated by the 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) radical followed by a homogenizing mechanical treatment.
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Effect of reaction conditions on the properties and behavior of wood cellulose nanocrystal suspensions.
TL;DR: Increased acid-to-pulp ratio reduced the dimensions of the nanocrystals thus produced and the critical concentration was increased and the biphasic range became narrower; a suspension made from a bleached kraft eucalyptus pulp gave very similar properties to the softwood nanocrystal suspension when prepared under similar hydrolysis conditions.
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Polymer nanofibers assembled by electrospinning
TL;DR: Electrospinning is a process by which polymer nanofibers (with diameter lower than 100 nm and lengths up to kilometres) can be produced using an electrostatically driven jet of polymer solution (or polymer melt) as mentioned in this paper.