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- W2568455045 abstract "Cellulose-based materials are well-suited for biomedical uses, because of their abundance, renewable nature, biodegradability, and relatively low cost. However, the set of commercially available cellulose esters and ethers is limited in number and diversity, and contains no cationically charged cellulose esters. Herein we report a simple, efficient strategy for synthesizing cationic, water-soluble co-polyelectrolytes from commercial, hydrophobic, renewable-based cellulose esters. Cellulose acetate (degree of substitution (DS) 1.78, CA320S), was the exemplary starting material for preparing these cationic polyelectrolytes by a reaction sequence of phosphine-catalyzed bromination and subsequent displacement by an aromatic amine, affording high reaction conversions. We show that these modification techniques can be carried out with essentially complete regio- and chemoselectivity, proceeding in the presence of multiple ester groups, yet preserving those groups. Availability of these novel polysaccharide-based electrolytes starting from uncharged, commercial, inexpensive cellulose esters may open up multiple new application areas, including in several aspects of gene or drug delivery." @default.
- W2568455045 created "2017-01-13" @default.
- W2568455045 creator A5016990316 @default.
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- W2568455045 date "2017-04-01" @default.
- W2568455045 modified "2023-10-12" @default.
- W2568455045 title "Water-soluble co-polyelectrolytes by selective modification of cellulose esters" @default.
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- W2568455045 doi "https://doi.org/10.1016/j.carbpol.2017.01.008" @default.
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