New ionic polymers by subsequent functionalization of cellulose derivatives

Vieira, Matilde Calado; Liebert, Tim; Heinze, Thomas

doi:10.1533/9781845693749.2.53

Cited by 5 publications

(1 citation statement)

References 12 publications

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“…14,15 Kurita et al have found that some properties of chitin and chitosan (antimicrobial activity, aggregation ability for bovine serum albumin) are improved after glycosylation reaction with a glucosamino derivative. 16 In the course of our ongoing work on water-soluble cellulose derivatives, we have reported results on oxidized cellulose derivatives 17 , cellulosics bearing cationically charged moieties, 18 cellulosics bearing oxocarbonic acid esters of high DS, 19 carboxymethyl cellulose 20 , and cellulose polyelectrolytes prepared via click-reaction. 21 For homogeneous chemical modification of cellulose, DMA/LiCl developed by McCormick, is a very versatile reaction medium.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of branched polysaccharides by reaction of cellulose with 2,3,4,6-tetraacetyl-1-bromo-α-D-glucopyranoside

Koschella¹,

Dorn²,

Heinze³

et al. 2012

Arkivoc

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Non-naturally branched polysaccharides were prepared homogeneously by reaction of cellulose in N,N-dimethyl acetamide/LiCl and the ionic liquid 1-N-butyl-3-methylimidazolium chloride with 2,3,4,6-tetraacetyl-1-bromo-α-D-glucopyranoside in the presence of triethylamine as base. Degrees of substitution up to 0.58 were realized. The samples were soluble in dimethyl sulphoxide and water. NMR spectroscopy and methylation analysis revealed the formation of 1,2-orthoesters. The purity of the products regarding non-bonded sugar molecules was evidenced by advanced NMR techniques (DOSY-and T 2 measurements). In contrast to the reaction in 1-N-butyl-3-methylimidazolium chloride, 1-N-ethyl-3-methylimidazolium acetate acts not only as solvent but also as reagent and leads to the formation of cellulose acetate instead of the desired product.

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Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of branched polysaccharides by reaction of cellulose with 2,3,4,6-tetraacetyl-1-bromo-α-D-glucopyranoside

Koschella¹,

Dorn²,

Heinze³

et al. 2012

Arkivoc

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Dissolution and Application of Cellulose in NaOH/Urea Aqueous Solution

Xiong

Duan

2012

The Role of Green Chemistry in Biomass Processing and Conversion

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Cellulose: faszinierendes Biopolymer und nachhaltiger Rohstoff

et al. 2005

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Als wichtigster Gerüstbildner der Pflanzenwelt ist das Polysaccharid Cellulose ein nahezu unerschöpflicher polymerer Rohstoff mit einem faszinierenden Struktur‐ und Eigenschaftspotenzial. Durch reguläre Verknüpfung von D‐Glucose‐Bausteinen gebildet, zeichnet sich das hochfunktionalisierte lineare und kettensteife Homopolymer Cellulose durch Hydrophilie, Chiralität, Bioabbaubarkeit, breite chemische Modifizierbarkeit und den Aufbau vielfältiger teilkristalliner Fasermorphologien aus. Mit Blick auf die weltweit stark expandierende interdisziplinäre Celluloseforschung und Produktentwicklung der letzten Dekade verknüpft dieser Aufsatz den aktuellen Wissensstand zu Struktur und Chemie der Cellulose mit der Entwicklung innovativer Celluloseester und ‐ether für Beschichtungen, Filme, Membranen, Baustoffe, Bohrtechnologien, Pharmaka und Nahrungsmittel. Mit umweltfreundlichen Cellulosefaser‐Technologien, Bakteriencellulose‐Biomaterialien und In‐vitro‐Synthesen der Cellulose sind Wege ins Neuland einbezogen, ebenso Aussagen zu den weiteren Zielen, Strategien und Perspektiven der Celluloseforschung und ‐applikation.

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New ionic polymers by subsequent functionalization of cellulose derivatives

Cited by 5 publications

References 12 publications

Synthesis and characterization of branched polysaccharides by reaction of cellulose with 2,3,4,6-tetraacetyl-1-bromo-α-D-glucopyranoside

Synthesis and characterization of branched polysaccharides by reaction of cellulose with 2,3,4,6-tetraacetyl-1-bromo-α-D-glucopyranoside

Dissolution and Application of Cellulose in NaOH/Urea Aqueous Solution

Cellulose: faszinierendes Biopolymer und nachhaltiger Rohstoff

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