Solubility parameters of biopolymers

He He, Annika Smeds, Rauno Friman, Jarl Rosenholm

    Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

    6 Citeringar (Scopus)

    Sammanfattning

    Both unmodified and a range of hydrophobically modified (acetylated) polydextrose and spruce galactoglucomannan preparations have been characterised for their solubility and phase separation in a number of solvents. Intrinsic viscosity and aggregate size determinations were used to establish the solubility parameters of polymers at 298K. A slightly different polymer solubility parameter was found when pure solvents or solvent mixtures were used. This was interpreted as a difference in preferential solvation. The developed thermodynamic framework was successfully used to calculate solubility parameters of polymers from matching solvent solubility parameter and critical solubility parameters determined at phase boundary.
    OriginalspråkOdefinierat/okänt
    Sidor (från-till)302–316
    Antal sidor15
    TidskriftPhysics and Chemistry of Liquids
    Volym51
    Utgåva3
    DOI
    StatusPublicerad - 2013
    MoE-publikationstypA1 Tidskriftsartikel-refererad

    Nyckelord

    • acetylation
    • galactoglucomannan
    • intrinsic viscosity
    • Martin equation
    • polydextrose
    • solubility parameter

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