Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Revisiting very disperse macromolecule populations in hydrodynamic and light scattering studies of sodium carboxymethyl celluloses. / Grube, Mandy; Perevyazko, Igor ; Heinze, Thomas ; Nischang, Ivo.
в: Carbohydrate Polymers, Том 229, 115452, 01.02.2020.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Revisiting very disperse macromolecule populations in hydrodynamic and light scattering studies of sodium carboxymethyl celluloses
AU - Grube, Mandy
AU - Perevyazko, Igor
AU - Heinze, Thomas
AU - Nischang, Ivo
N1 - Publisher Copyright: © 2019 Elsevier Ltd
PY - 2020/2/1
Y1 - 2020/2/1
N2 - One of the most abundant natural macromolecule, cellulose, is of high importance in technological research including medicine, energy application platforms, and many more. One of its most important ionic derivatives, sodium carboxymethyl cellulose, is known to be very disperse and heterogeneous. The experimental robustness of the methods of hydrodynamics and light scattering are put to test by studying these highly disperse, charged, and heterogeneous macromolecule populations. The following opportunities for molar mass estimations from experimental data were taken into consideration: (i) from the classical Svedberg equation, (ii) from size exclusion chromatography coupled to multi-angle laser light scattering, (iii) from the hydrodynamic invariant, and (iv) the sedimentation parameter. The orthogonality of such approach demonstrates a statistically robust assessment of chain conformational and chain dimensional characteristics of macromolecule populations. Quantitative comparison between the absolute techniques indicates that those have to be checked for accuracy of the obtained and derived characteristics.
AB - One of the most abundant natural macromolecule, cellulose, is of high importance in technological research including medicine, energy application platforms, and many more. One of its most important ionic derivatives, sodium carboxymethyl cellulose, is known to be very disperse and heterogeneous. The experimental robustness of the methods of hydrodynamics and light scattering are put to test by studying these highly disperse, charged, and heterogeneous macromolecule populations. The following opportunities for molar mass estimations from experimental data were taken into consideration: (i) from the classical Svedberg equation, (ii) from size exclusion chromatography coupled to multi-angle laser light scattering, (iii) from the hydrodynamic invariant, and (iv) the sedimentation parameter. The orthogonality of such approach demonstrates a statistically robust assessment of chain conformational and chain dimensional characteristics of macromolecule populations. Quantitative comparison between the absolute techniques indicates that those have to be checked for accuracy of the obtained and derived characteristics.
KW - Absolute molar mass
KW - Analytical ultracentrifugation
KW - Conformation
KW - Diffusion
KW - dispersity
KW - Hydrodynamic invariants
KW - Light scattering
KW - Macromolecular chain propertie
KW - Rotational friction
KW - Translational friction
KW - Dispersity
KW - Macromolecular chain properties
KW - RAW-MATERIALS
KW - SUBSTITUTION
KW - MOLECULAR-WEIGHTS
KW - MOLAR-MASS
KW - CONFORMATION
KW - SEDIMENTATION
KW - ULTRACENTRIFUGATION
KW - COEFFICIENT
KW - PATTERN
KW - DERIVATIVES
UR - http://www.scopus.com/inward/record.url?scp=85073685929&partnerID=8YFLogxK
UR - http://www.mendeley.com/research/revisiting-very-disperse-macromolecule-populations-hydrodynamic-light-scattering-studies-sodium-carb
U2 - 10.1016/j.carbpol.2019.115452
DO - 10.1016/j.carbpol.2019.115452
M3 - Article
VL - 229
JO - Carbohydrate Polymers
JF - Carbohydrate Polymers
SN - 0144-8617
M1 - 115452
ER -
ID: 49358576