Interaction of industrially relevant cationic starches with cellulose

Katrin Niegelhell; Angela Chemelli; Josefine Hobisch; Thomas Griesser; Heidemarie Reiter; Ulrich Hirn; Stefan Spirk

doi:10.1016/j.carbpol.2017.10.003

Interaction of industrially relevant cationic starches with cellulose

Carbohydr Polym. 2018 Jan 1:179:290-296. doi: 10.1016/j.carbpol.2017.10.003. Epub 2017 Oct 3.

Authors

Katrin Niegelhell¹, Angela Chemelli², Josefine Hobisch³, Thomas Griesser⁴, Heidemarie Reiter⁵, Ulrich Hirn¹, Stefan Spirk⁶

Affiliations

¹ Graz University of Technology, Institute for Paper, Pulp and Fiber Technology, Inffeldgasse 23A, 8010 Graz, Austria; CD-Laboratory for Fibre Swelling and Paper Performance, Inffeldgasse 23A, 8010 Graz, Austria.
² Graz University of Technology, Institute for Inorganic Chemistry, Stremayrgasse 9, 8010 Graz, Austria.
³ Graz University of Technology, Institute for Chemistry and Technology of Materials, Stremayrgasse 9, 8010 Graz, Austria.
⁴ University of Leoben, Chair of Polymeric Materials, Otto-Glöckl-Strasse 9, 8700 Leoben, Austria.
⁵ CD-Laboratory for Fibre Swelling and Paper Performance, Inffeldgasse 23A, 8010 Graz, Austria; Mondi Uncoated Fine & Kraft Paper GmbH, Marxergasse 4A, 1030 Wien, Austria.
⁶ Graz University of Technology, Institute for Paper, Pulp and Fiber Technology, Inffeldgasse 23A, 8010 Graz, Austria; CD-Laboratory for Fibre Swelling and Paper Performance, Inffeldgasse 23A, 8010 Graz, Austria. Electronic address: stefan.spirk@tugraz.at.

PMID: 29111054
DOI: 10.1016/j.carbpol.2017.10.003

Abstract

Industrially relevant, commercially available cationic starches have been investigated towards their interaction capacity with cellulose thin films derived from trimethylsilyl cellulose (TMSC). The starches used in this study stem from different sources (potato, pea, corn) and featured rather low degrees of substitution ranging from 0.030 to 0.062. The interaction of those starches with cellulose thin films was studied by surface plasmon resonance spectroscopy under flow conditions using concentrations of 1.0mgml^-1 and a flow rate of 25μlmin^-1. All the investigated starches employed in this study were capable to efficiently interact with the slightly negatively charged cellulose surface leading to irreversible deposition on the surface. As complementary techniques atomic force microscopy and x-ray photoelectron spectroscopy were used to confirm the presence of the starches on the cellulose film surface. Further, dynamic light scattering and size exclusion chromatography measurements were performed to correlate adsorbed amount, particle size and molecular weight of the starches to their interaction behavior.

Keywords: Cationic starch; Cellulose thin films; Nanocellulose; Surface plasmon resonance.