Advanced

Polysaccharide characterization by flow field-flow fractionation-multiangle light scattering: Initial studies of modified starches

Wittgren, B; Wahlund, Karl-Gustav LU ; Andersson, M and Arfvidsson, Cecilia LU (2002) In International Journal of Polymer Analysis and Characterization 7(1-2). p.19-40
Abstract
Chemically modified starches are commonly used for various purposes. Depending on the type of derivatization, a chemical degradation of the original polymeric structure may occur, resulting in a change of molar mass. It is therefore always of interest to know the molar mass and possibly the conformation of the derivative. Four commercially available hydroxypropyl and hydroxyethyl modified starches were examined by asymmetrical flow field-flow fractionation combined with multiangle laser light scattering. The weight-average molar mass and the molar mass distribution were determined, with emphasis put on the rapid analysis and studies of the suitable experimental conditions regarding flow rates so that accurate data were obtained. The molar... (More)
Chemically modified starches are commonly used for various purposes. Depending on the type of derivatization, a chemical degradation of the original polymeric structure may occur, resulting in a change of molar mass. It is therefore always of interest to know the molar mass and possibly the conformation of the derivative. Four commercially available hydroxypropyl and hydroxyethyl modified starches were examined by asymmetrical flow field-flow fractionation combined with multiangle laser light scattering. The weight-average molar mass and the molar mass distribution were determined, with emphasis put on the rapid analysis and studies of the suitable experimental conditions regarding flow rates so that accurate data were obtained. The molar mass distribution determinations showed good reproducibility, and repeatability and were fast. Efforts to obtain conformational information are described. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
starches, modified, field-flow fractionation, multiangle light scattering, polysaccharides, molar mass distribution
in
International Journal of Polymer Analysis and Characterization
volume
7
issue
1-2
pages
19 - 40
publisher
Taylor & Francis
external identifiers
  • wos:000176118000002
  • scopus:0036013445
ISSN
1563-5341
DOI
10.1080/10236660214599
language
English
LU publication?
yes
id
20cfbaa0-8211-4031-b96d-e7b72c8d1d9b (old id 335514)
date added to LUP
2007-11-16 12:13:14
date last changed
2017-01-01 05:06:38
@article{20cfbaa0-8211-4031-b96d-e7b72c8d1d9b,
  abstract     = {Chemically modified starches are commonly used for various purposes. Depending on the type of derivatization, a chemical degradation of the original polymeric structure may occur, resulting in a change of molar mass. It is therefore always of interest to know the molar mass and possibly the conformation of the derivative. Four commercially available hydroxypropyl and hydroxyethyl modified starches were examined by asymmetrical flow field-flow fractionation combined with multiangle laser light scattering. The weight-average molar mass and the molar mass distribution were determined, with emphasis put on the rapid analysis and studies of the suitable experimental conditions regarding flow rates so that accurate data were obtained. The molar mass distribution determinations showed good reproducibility, and repeatability and were fast. Efforts to obtain conformational information are described.},
  author       = {Wittgren, B and Wahlund, Karl-Gustav and Andersson, M and Arfvidsson, Cecilia},
  issn         = {1563-5341},
  keyword      = {starches,modified,field-flow fractionation,multiangle light scattering,polysaccharides,molar mass distribution},
  language     = {eng},
  number       = {1-2},
  pages        = {19--40},
  publisher    = {Taylor & Francis},
  series       = {International Journal of Polymer Analysis and Characterization},
  title        = {Polysaccharide characterization by flow field-flow fractionation-multiangle light scattering: Initial studies of modified starches},
  url          = {http://dx.doi.org/10.1080/10236660214599},
  volume       = {7},
  year         = {2002},
}