Solubility parameters of biopolymers

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Ning He, Annika Smeds, Rauno Friman and Jarl B Rosenholm
Förläggare: TAYLOR & FRANCIS LTD
Publiceringsår: 2013
Tidskrift: Physics and Chemistry of Liquids
Tidskriftsakronym: PHYS CHEM LIQ
Volym: 51
Nummer: 3
Artikelns första sida, sidnummer: 302
Artikelns sista sida, sidnummer: 316
Antal sidor: 15
ISSN: 0031-9104


Abstrakt

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.


Nyckelord

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

Senast uppdaterad 2019-05-12 vid 03:28