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Article

Starch Formates: Synthesis and Modification

1
Centre of Excellence for Polysaccharide Research, Institute for Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstraße 10, D-07743 Jena, Germany
2
State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
*
Author to whom correspondence should be addressed.
Academic Editors: Janusz Kapusniak and Idalina Gonçalves
Molecules 2021, 26(16), 4882; https://doi.org/10.3390/molecules26164882
Received: 21 July 2021 / Revised: 10 August 2021 / Accepted: 11 August 2021 / Published: 12 August 2021
Starch can be efficiently converted into the corresponding formates homogeneously using N-formyl imidazole obtained by the reaction of 1,1′-carbonyldiimidazole and formic acid in dimethyl sulfoxide as a solvent. Starch formates are soluble in polar aprotic solvents, not susceptible against hydrolysis, and not meltable. Thermoplastics could be generated by conversion of starch formates with long-chain fatty acids exemplified by the conversion with lauroyl chloride in N,N-dimethylacetamide, leading to mixed starch laurate formates. The mixed esters show melting temperatures mainly dependent on the amount of laurate ester moieties. View Full-Text
Keywords: starch; esterification; starch formate; mixed starch ester; thermoplastic starch; esterification; starch formate; mixed starch ester; thermoplastic
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MDPI and ACS Style

Blohm, S.; Heinze, T.; Qi, H. Starch Formates: Synthesis and Modification. Molecules 2021, 26, 4882. https://doi.org/10.3390/molecules26164882

AMA Style

Blohm S, Heinze T, Qi H. Starch Formates: Synthesis and Modification. Molecules. 2021; 26(16):4882. https://doi.org/10.3390/molecules26164882

Chicago/Turabian Style

Blohm, Sascha, Thomas Heinze, and Haisong Qi. 2021. "Starch Formates: Synthesis and Modification" Molecules 26, no. 16: 4882. https://doi.org/10.3390/molecules26164882

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