Chemical surface modifications of microfibrillated cellulose

Stenstad, Per; Andresen, Martin; Tanem, Björn Steinar; Stenius, Per

doi:10.1007/s10570-007-9143-y

Cited by 322 publications

(178 citation statements)

References 23 publications

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“…Actually, the chains of poly-β-(1→4)-D-glucosyl residues aggregate to form a fibril, which is a long thread-like bundle of molecules laterally stabilized by intermolecular hydrogen bonds [19][20][21], as shown in Figure 2. Individual cellulose microfibrils have diameters ranging from 2 to 20 nm [22,23].…”

Section: Cellulosementioning

confidence: 99%

Cellulosic Bionanocomposites: A Review of Preparation, Properties and Applications

2010

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Cellulose is the most abundant biomass material in nature. Extracted from natural fibers, its hierarchical and multi-level organization allows different kinds of nanoscaled cellulosic fillers-called cellulose nanocrystals or microfibrillated cellulose (MFC)-to be obtained. Recently, such cellulose nanoparticles have been the focus of an exponentially increasing number of works or reviews devoted to understanding such materials and their applications. Major studies over the last decades have shown that cellulose nanoparticles could be used as fillers to improve mechanical and barrier properties of biocomposites. Their use for industrial packaging is being investigated, with continuous studies to find innovative solutions for efficient and sustainable systems. Processing is more and more important and different systems are detailed in this paper depending on the polymer solubility, i.e., (i) hydrosoluble systems, (ii) non-hydrosoluble systems, and (iii) emulsion systems. This paper intends to give a clear overview of cellulose nanoparticles reinforced composites with more than 150 references by describing their preparation, characterization, properties and applications. OPEN ACCESSPolymers 2010, 2 729

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Section: Cellulosementioning

confidence: 99%

Cellulosic Bionanocomposites: A Review of Preparation, Properties and Applications

2010

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“…Cellulose nanofiber [132], nanofibrillar cellulose [133,134], and cellulose nanofibril [135] are the terms used for nanofibrillated cellulose [136]. The preparation of CNFs needs strong mechanical machining.…”

Section: Production Of Cellulose Nanofibrilsmentioning

confidence: 99%

Recent Strategies in Preparation of Cellulose Nanocrystals and Cellulose Nanofibrils Derived from Raw Cellulose Materials

Xie

Yang

2018

International Journal of Polymer Science

194

128

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The recent strategies in preparation of cellulose nanocrystals (CNCs) and cellulose nanofibrils (CNFs) were described. CNCs and CNFs are two types of nanocelluloses (NCs), and they possess various superior properties, such as large specific surface area, high tensile strength and stiffness, low density, and low thermal expansion coefficient. Due to various applications in biomedical engineering, food, sensor, packaging, and so on, there are many studies conducted on CNCs and CNFs. In this review, various methods of preparation of CNCs and CNFs are summarized, including mechanical, chemical, and biological methods. The methods of pretreatment of cellulose are described in view of the benefits to fibrillation.

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“…Several studies have been made of the chemical modification of nano-and microfibrillated cellulose (Stenstad et al 2008;Lu et al 2008) as well as cellulose micro-and nanocrystals and whiskers (Araki et al 2001;Eyholzer et al 2010;Dong and Roman 2007;Goussé et al 2002;Kloser and Gray 2010;Siqueira et al 2010). However, only one paper exists on the application of click-chemistry on the modification of cellulose nanostructures (Filpponen and Argyropoulos 2010).…”

Section: Introductionmentioning

confidence: 99%

Surface functionalization of nanofibrillated cellulose using click-chemistry approach in aqueous media

et al. 2011

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In the present work, amino functionalized nanofibrillated cellulose (NFC) was prepared using click-chemistry in aqueous reaction conditions. First, reactive azide groups were introduced on the surface of NFC by the etherification of 1-azido-2,3-epoxypropane in alkaline water/isopropanol-mixture at ambient temperature. Then the azide groups were reacted with propargyl amine utilizing copper catalyzed azide-alkyne cycloaddition (CuAAC), leading to pH-responsive 1,2,3-triazole-4-methanamine decorated NFC. The reaction products were characterized using Fourier transform infrared spectroscopy, elemental analysis and X-ray photoelectron spectroscopy. The presence of the attached azide groups was also confirmed by reacting them with 5-(dimethylamino)-N-(2-propyl)-1-naphthalenesulfonamide by CuAAC, yielding highly fluorescent NFC. In addition, atom force microscopy and rheology studies confirmed that the original NFC nanostructure was maintained during the synthesis.

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Chemical surface modifications of microfibrillated cellulose

Cited by 322 publications

References 23 publications

Cellulosic Bionanocomposites: A Review of Preparation, Properties and Applications

Cellulosic Bionanocomposites: A Review of Preparation, Properties and Applications

Recent Strategies in Preparation of Cellulose Nanocrystals and Cellulose Nanofibrils Derived from Raw Cellulose Materials

Surface functionalization of nanofibrillated cellulose using click-chemistry approach in aqueous media

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