Synthesis and characterization of novel water‐soluble and bactericidic cationic starch esters

Novel water‐soluble cationic starch esters, namely starch‐4‐(N,N,N‐trimethylammonium)butyrate chloride with high degree of substitution (DS) of up to 0.7 could be easily prepared by conversion of starch of different molar mass with the imidazolide of 3‐carboxypropyltrimethylammonium chloride (CPTMAC...

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Bibliographic Details
Published in:Starch ‐ Stärke 2017-09, Vol.69 (9-10), p.n/a
Main Authors: Pfeifer, Annett, Hampe, Robert, Heinze, Thomas
Format: Article
Language:English
Subjects:
Antibacterial
Antibacterial activity
Bacteria
Biopolymers
Cationic starch ester
Cations
Chloride
Dimethyl sulfoxide
Esters
Fourier transforms
Infrared spectroscopy
Magnetic resonance spectroscopy
NMR spectroscopy
Starch
Synthesis
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Summary:Novel water‐soluble cationic starch esters, namely starch‐4‐(N,N,N‐trimethylammonium)butyrate chloride with high degree of substitution (DS) of up to 0.7 could be easily prepared by conversion of starch of different molar mass with the imidazolide of 3‐carboxypropyltrimethylammonium chloride (CPTMACl) homogeneously in dimethyl sulfoxide (DMSO). The products were characterized in detail by FTIR and NMR spectroscopy, including two‐dimensional methods. The cationic starch esters possess a high antibacterial activity.
ISSN:0038-9056
1521-379X
DOI:10.1002/star.201700029