Bio Based Polymer Thickeners Environmental Fate & Ecotoxicity

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Identifiers

Formula(C6H7NaO6)n·CAS9005-38-3·EC231-493-2

What are the physicochemical properties of Bio based polymer thickeners?

PropertyValueCategory
primary structure (monomer composition)repeated pentasaccharide units: two glucose units, two mannose units, and one glucuronic acid unit (molar ratio 2.8:2.0:2.0)Analytical Properties
main chain compositionβ-D-glucose units linked at 1 and 4 positionsAnalytical Properties
side chain compositiontrisaccharide side chains containing a D-glucuronic acid unit between two D-mannose units (O-3 linked every other glucose residue)Analytical Properties
pyruvic acid modificationapproximately one-half of the terminal D-mannose contains a pyruvic acid residue (linked via keto group to 4 and 6 positions)Analytical Properties
acetyl modificationD-mannose unit in main chain has an acetyl group at position O-6Analytical Properties
overall charge featureanionic polysaccharide type due to acetic and pyruvic acidsAnalytical Properties
solubility in waterhighly soluble in both cold and hot waterAnalytical Properties
solution viscosity behaviorsolutions tend to be highly viscous; dissolution temperature and molecular conformation (helix vs random coil) affect viscosityAnalytical Properties
conformational stateshelix and random coil depend on dissolution temperatureAnalytical Properties
galactomannan content~75 %Analytical Properties