Solubility parameters of biopolymers

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Ning He, Annika Smeds, Rauno Friman and Jarl B Rosenholm
Publisher: TAYLOR & FRANCIS LTD
Publication year: 2013
Journal: Physics and Chemistry of Liquids
Journal acronym: PHYS CHEM LIQ
Volume number: 51
Issue number: 3
Start page: 302
End page: 316
Number of pages: 15
ISSN: 0031-9104


Abstract

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.


Keywords

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

Last updated on 2020-02-04 at 05:49