Novel cellulose-based polyelectrolytes synthesized via the click reaction.
Novel polyelectrolytes were prepared by conversion of 6-azido-6-deoxycellulose with acetylenedicarboxylic acid dimethyl ester and subsequent saponification. Up to 62% of the azide moieties were converted. The reaction was completed within 48 h using 2 moles of acetylenedicarboxylic acid dimethyl ester per mole of modified anhydroglucose unit. FTIR and NMR spectroscopy were applied to elucidate the molecular structure of the polymers. The polymer degradation was acceptable during this two-step reaction. The resulting biopolymer derivatives were water soluble and reduced the surface tension on water significantly. Moreover, they form ionotropic gels with multivalent metal ions.
Koschella
Andreas
A
Friedrich Schiller University of Jena, Institute for Organic Chemistry and Macromolecular Chemistry, Center of Excellence for Polysaccharide Research, Humboldtstrasse 10, D-07743 Jena, Germany.
Richter
Martin
M
Heinze
Thomas
T
D000480:Alkynes / Q000737:chemistry; D001386:Azides / Q000737:chemistry; D002482:Cellulose / Q000737:chemistry*; D002850:Chromatography, Gel; D004573:Electrolytes / Q000138:chemical synthesis* / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D017550:Spectroscopy, Fourier Transform Infrared
D000480:Alkynes; D001386:Azides; D004573:Electrolytes; C022918:acetylenedicarboxylic acid dimethyl ester; D002482:Cellulose