Cellulose derivatives and graft copolymers as blocks for functional materials

Kang, Hongliang; Liu, Ruigang; Huang, Yong

doi:10.1002/pi.4455

Cited by 62 publications

(33 citation statements)

References 176 publications

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“…The market is focusing on using cellulose fibers through renewable sources [134]. Most fibers made from cellulose derivatives are produced by replacing the hydrogen atoms of hydroxyl groups in the AGUs of cellulose with alkyl or substituted alkyl groups [135]. Cellulose derivatives can be cellulose esters and ethers.…”

Section: Industrial Cellulose Derivative Production Methodsmentioning

confidence: 99%

“…Cellulose derivatives can be cellulose esters and ethers. They are generally synthesized by esterification of cellulose with inorganic or organic acids, or by etherification or Michael addition in heterogeneous or homogeneous media, respectively [135]. Cellulose derivatives production mechanism using ILs is schematized in Figure 3.…”

Section: Industrial Cellulose Derivative Production Methodsmentioning

confidence: 99%

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Ionic Liquid as Reaction Media for the Production of Cellulose-Derived Polymers from Cellulosic Biomass

et al. 2017

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Abstract:The most frequent polymer on nature is cellulose that is present together with lignin and hemicellulose in vegetal biomass. Cellulose can be, in the future, sustainable raw matter for chemicals, fuels, and materials. Nevertheless, only 0.3% of cellulose is processed nowadays due to the difficulty in dissolving it, and only a small proportion is used for the production of synthetic cellulosic fibers especially esters and other cellulose derivatives, normally in extremely polluting processes. The efficient and clean dissolution of cellulose is a major objective in cellulose research and development. Ionic liquids (ILs) are considered "green" solvents due to their low vapor pressure, that prevents them evaporating into the atmosphere. In addition, these molten salts present advantages in process intensification, leading to more than 70 patents in lignocellulosic biomass in ILs being published since 2005, most of them related to the production of cellulose derived polymers, e.g., acetates, benzoylates, sulfates, fuorates, phthalates, succinates, tritylates, or silylates. In this work, the use of ILs for production of cellulose derived polymers is thoroughly studied. To do so, in the first place, a brief summary of the state of the art in cellulose derivatives production is presented, as well as the main features of ILs in cellulose processing applications. Later, the main results in the production of cellulose derivatives using ILs are presented, followed by an analysis of the industrial viability of the process, considering aspects such as environmental concerns and ILs' recyclability.

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Section: Industrial Cellulose Derivative Production Methodsmentioning

confidence: 99%

Section: Industrial Cellulose Derivative Production Methodsmentioning

confidence: 99%

Ionic Liquid as Reaction Media for the Production of Cellulose-Derived Polymers from Cellulosic Biomass

et al. 2017

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“…Cellulose derivatives in the form of block copolymers have been proposed as stimuli responsive mediators that can be prepared, regioselectively modified through dissolution of cellulose in ionic liquids, and modified through radical polymerization [11]. Regioselectively modified cellulose as a polyethylene glycol derivative was also synthesized and employed to give rise to honeycomb patterned films that are formed based on amphiphilic cellulosic properties [12].…”

Section: Biosensors With Polymer Biopolymer and Enzyme Composites Ofmentioning

confidence: 99%

“…Materials including carbon nanotubes, mesoporous silica, gold, quantum dots, dendrimers, biopolymers and block copolymers when combined with nanocellulose have been shown to be useful in optimizing biosensor design [11][12][13][14][15][16][17]. Cellulose derivatives in the form of block copolymers have been proposed as stimuli responsive mediators that can be prepared, regioselectively modified through dissolution of cellulose in ionic liquids, and modified through radical polymerization [11].…”

Section: Biosensors With Polymer Biopolymer and Enzyme Composites Ofmentioning

confidence: 99%

Nanocellulose-Based Biosensors: Design, Preparation, and Activity of Peptide-Linked Cotton Cellulose Nanocrystals Having Fluorimetric and Colorimetric Elastase Detection Sensitivity

Edwards¹,

Prevost²,

French³

et al. 2013

ENG

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Nanocrystalline cellulose is an amphiphilic, high surface area material that can be easily functionalized and is biocompatible and eco-friendly. It has been used singularly and in combination with other nanomaterials to optimize biosensor design. The attachment of peptides and proteins to nanocrystalline cellulose and their proven retention of activity provide a route to bioactive conjugates useful in designs for point of care biosensors. Elastase is a biomarker for a number of inflammatory diseases including chronic wounds, and its rapid sensitive detection with a facile approach to sensing is of interest. An increased interest in the use of elastase sensors for point of care diagnosis is resulting in a variety of approaches to elsastase sensors utilizing different detection technologies. Here elastase substrate peptide-celluose conjugates synthesized as colorimetric and fluorescent sensors on cotton cellulose nanocrystals are compared. The structure of the sensor peptide-nanocellulose crystals when modeled with computational crystal structure parameters demonstrates the spatio-stoichiometric features of the nanocrystalline surface that allows ligand to active site protease interacttion. An understanding of the structure/function relations of enzyme and conjugate substrate of the peptides covalently attached to nancellulose has implications for enhancing the biomolecular transducer. The potential applications of both fluorescent and colorimetric detection to markers like elastase using peptide cotton cellulose nanocrystals as a transducer surface to model point of care biosensors for protease detection are discussed.

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“…In recent years, many amphiphilic modifications of cellulose have been performed homogeneously and efficiently in ILs by various techniques, such as reversible addition-fragmentation chain transfer (RAFT) (Liu et al 2010), atom transfer radical polymerization (ATRP) (Kang et al 2013) and ring opening polymerization (ROP) (Labet and Thielemans 2011). Lin et al (2013) reported the first illustration for the graft copolymerization of methylmethacrylate onto cellulose by RAFT in 1-butyl-3-methylimidazolium chloride (BmimCl) and proved a more controlled/living polymerization character.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization, and micellar behaviors of hydroxyethyl cellulose-graft-poly(lactide/ε-caprolactone/p-dioxanone)

Guo

Zhong

et al. 2015

Cellulose

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In response to the shortage of petroleum resources and the growing need for sustainable development, cellulose-based amphiphilic copolymers have emerged as a new generation of valueadded functional nanostructures from biomass resources. In this article, 17 amphiphilic hydroxyethyl cellulose-based graft copolymers with different side chains, including poly(lactide), poly(e-caprolactone) and poly(p-dioxanone), were synthesized via homogeneous ring opening polymerization in ionic liquid 1-butyl-3-methylimidazolium chloride and characterized by FT-IR, 1 H NMR, thermogravimetric analysis and gel permeation chromatography. The resultant copolymers can self-assemble into micelles with a low critical micelle concentration that varies in the range of 0.03-0.24 mg/ml. TEM observations revealed the obtained micelles had a spherical and well-distributed morphology, and DLS analysis showed the nanoscaled sizes were between 40 and 150 nm. These HEC-based micelles can be used as nano-sized vesicles and have great latent forces in drug delivery systems.

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Cellulose derivatives and graft copolymers as blocks for functional materials

Cited by 62 publications

References 176 publications

Ionic Liquid as Reaction Media for the Production of Cellulose-Derived Polymers from Cellulosic Biomass

Ionic Liquid as Reaction Media for the Production of Cellulose-Derived Polymers from Cellulosic Biomass

Nanocellulose-Based Biosensors: Design, Preparation, and Activity of Peptide-Linked Cotton Cellulose Nanocrystals Having Fluorimetric and Colorimetric Elastase Detection Sensitivity

Synthesis, characterization, and micellar behaviors of hydroxyethyl cellulose-graft-poly(lactide/ε-caprolactone/p-dioxanone)

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