Polysaccharide characterization by flow field-flow fractionation-multiangle light scattering: Initial studies of modified starches
(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:
https://lup.lub.lu.se/record/335514
- author
- Wittgren, B ; Wahlund, Karl-Gustav LU ; Andersson, M and Arfvidsson, Cecilia LU
- organization
- publishing date
- 2002
- 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
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Center for Chemistry and Chemical Engineering (011001000), Organic chemistry (S/LTH) (011001240), Centre for Analysis and Synthesis (011001266), Analytical Chemistry (S/LTH) (011001004)
- id
- 20cfbaa0-8211-4031-b96d-e7b72c8d1d9b (old id 335514)
- date added to LUP
- 2016-04-01 12:24:01
- date last changed
- 2022-01-27 03:10:57
@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}}, keywords = {{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}}, doi = {{10.1080/10236660214599}}, volume = {{7}}, year = {{2002}}, }