Solubility parameters of biopolymers

He He, Annika Smeds, Rauno Friman, Jarl Rosenholm

    Research output: Contribution to journalArticleScientificpeer-review

    9 Citations (Scopus)


    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.
    Original languageUndefined/Unknown
    Pages (from-to)302–316
    Number of pages15
    JournalPhysics and Chemistry of Liquids
    Issue number3
    Publication statusPublished - 2013
    MoE publication typeA1 Journal article-refereed


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

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