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Journal articles
Direct and one-pot conversion of polyguluronates and alginates into alkyl-L-guluronamide-based surfactant compositions
Abstract : We describe here an efficient one-pot process for the synthesis of 100% bio-based L-guluronic acid based surfactant compositions as emulsion stabilizers, directly from L-polyguluronate or whole alginate, a renewable polysaccharide extracted from brown seaweeds. The transformation of these polymers into long-chain alkyl-L-guluronamides associated with D-mannuronamides when the alginate was used, has been achieved through the preparation of n-butyl uronate monosaccharide intermediates involving methane sulfonic acid-promoted hydrolysis, Fisher glycosylation and esterification reactions, followed by an in situ solvent-free aminolysis reaction with fatty amines.
https://hal-univ-rennes1.archives-ouvertes.fr/hal-01438116
Contributor : Laurent Jonchère <>
Submitted on : Thursday, March 16, 2017 - 10:50:01 AM
Last modification on : Wednesday, April 7, 2021 - 3:18:09 PM
Long-term archiving on: : Saturday, June 17, 2017 - 1:35:37 PM
Contributor : Laurent Jonchère <>
Submitted on : Thursday, March 16, 2017 - 10:50:01 AM
Last modification on : Wednesday, April 7, 2021 - 3:18:09 PM
Long-term archiving on: : Saturday, June 17, 2017 - 1:35:37 PM
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Direct and one-pot conversion ...
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