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zeige Details Kolínský, M.., Janča, J.. Some applications of gel-permeation chromatography in investigations of structure and the solution properties of radical-initiated poly(vinyl chloride)
in: Journal of Polymer Science: Polymer Chemistry Edition, in: Journal of Polymer Science: Polymer Chemistry Edition . - New York : John Wiley & Sons, Inc., ISSN 0360-6376 Vol. 12 (6. 1974), p. 1181-1191
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1974
The applicability of the published universal calibration parameters for gel-permeation chromatography on polystyrene standards and poly(vinyl chloride) samples with a defined structure has been compared. It was shown experimentally that of several theoretically possible molecular weight averages attributed to the elution volume at the position of the peak maximum, the root mean-square average molecular weight MRms = (MwMn)0.5 shows the best accordance. The molecular weights obtained by gel-permeation chromatography were compared with those determined by viscometry, osmometry, and the light-scattering method. The reproducibility of gel-permeation chromatography measurements is 3%, and the average variance of the results as compared with results obtained by the above methods is about 8%. It was also found that the gel-permeation chromatography does not involve any anomalies interfering with results obtained by other methods.
Copyright: Copyright © 1974 John Wiley & Sons, Inc.
beteiligte Personen: Kolínský, M.. , Janča, J..
Format: Elektronisch
Sprache: English
Erschienen: 1974.
Serie: Wiley InterScience Backfile Collection 1832-2000 [Dig. Serial]
Schlagwörter:
URL: http://dx.doi.org/10.1002/pol.1974.170120605

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