Size exclusion chromatography and viscometry in paper degradation studies. New Mark-Houwink coefficients for cellulose in cupri-ethylenediamine

The paper deals with the application of size exclusion chromatography (SEC) for the studies of paper degradation phenomena. The goal is to solve some of the technical problems connected with the calibration of multi-detector SEC system and to find the correlation between SEC and viscometric results...

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Bibliographic Details
Published in:Journal of Chromatography A 2010-10, Vol.1217 (42), p.6462-6468
Main Authors: LOJEWSKI, Tomasz, ZIEBA, Katarzyna, LOJEWSKA, Joanna
Format: Article
Language:English
Subjects:
Analytical chemistry
Applied sciences
Calibration
Cellulose
Cellulose and derivatives
Chemistry
Chromatographic methods and physical methods associated with chromatography
Chromatography
Correlation
Degradation
Degree of polymerization
Exact sciences and technology
Mark-Houwink coefficients
Natural polymers
Organic polymers
Other chromatographic methods
Paper, paperboard, non wovens
Physicochemistry of polymers
Polymer industry, paints, wood
Properties and characterization
Size exclusion chromatography
Structure, morphology and analysis
Viscometry
Wood. Paper. Non wovens
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Summary:The paper deals with the application of size exclusion chromatography (SEC) for the studies of paper degradation phenomena. The goal is to solve some of the technical problems connected with the calibration of multi-detector SEC system and to find the correlation between SEC and viscometric results of degree of polymerization of cellulose. The results gathered for the paper samples degraded by acidic air pollutant (NO 2) are used as an example of SEC–MALLS application. From the correlation between intrinsic viscosities and absolute value of molecular masses obtained with SEC/MALLS (Multi Angle Laser Light Scattering) technique, Mark-Houwink coefficients for cellulose in cupri-ethylenediamine solution were determined. Thus obtained coefficients were used for the determination of viscometric degree of polymerization (molecular mass) of the aged samples. An excellent correlation was found between the chromatographic values of molecular masses obtained with SEC–UV/VIS detection and the viscometric ones utilizing the improved values of Mark-Houwink coefficients.
ISSN:0021-9673
DOI:10.1016/j.chroma.2010.07.071