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Balke, S. T.., Hamielec, A. E.. |
Polymer reactors and molecular weight distribution. VIII. A method of interpreting skewed GPC chromatograms in: Journal of Applied Polymer Science, in: Journal of Applied Polymer Science . - New York, NY [u.a.] : Wiley, ISSN 0021-8995, ZDB-ID 1491105-x Vol. 13 (7. 1969), p. 1381-1419 Zugang: zum Volltext ähnliche Vorschläge |
1969 | |||||||||||||||
A new-method of interpreting GPC chromatograms which accounts for skewing and symmetrical axial dispersion has been developed. General relationships for a symmetrical axial dispersion correction and for a skewing correction are derived.The method has been verified experimentally for unimodal chromatograms and linear calibration curves over a wide range of GPC operating conditions, polymer molecular weights and polydispersities. Measurements of h and skewing factors were obtained by a once-through technique. The need for performing reverse flow experiments has been eliminated. Artificial oscillations in the corrected chromatogram due to step size (Method of Pierce-Armonas), and to number of terms in a polynomial expansion (Method of Tung and Method of Smith) are eliminated.The method has yet to be evaluated for nonlinear calibration curves and multi-modal distributions. However, suggestions for its application in these circumstances are presented.
Copyright: Copyright © 1969 John Wiley & Sons, Inc.
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Mahabadi, H. Kh.. |
Method for gel permeation chromatography calibration and the evaluation of Mark-Houwink constants in: Journal of Applied Polymer Science, in: Journal of Applied Polymer Science . - New York, NY [u.a.] : Wiley, ISSN 0021-8995, ZDB-ID 1491105-x Vol. 30 (4. 1985), p. 1535-1544 Zugang: zum Volltext ähnliche Vorschläge |
1985 | |||||||||||||||
A novel and simple method is described for evaluation of the Mark-Houwink constants and developing of GPC calibration curve for a polymer where only broad molecular weight distribution samples are available. The method demands the GPC calibration curve for polystyrene and measurement of the... mehr
Copyright: Copyright © 1985 John Wiley & Sons, Inc. mehr
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Tung, L. H.., Runyon, J. R.. |
Molecular weight distributions of standard polystyrene samples by GPC and by sedimentation velocity analysisPresented at the 164th ACS National Meeting, New York, New York,... in: Journal of Applied Polymer Science, in: Journal of Applied Polymer Science . - New York, NY [u.a.] : Wiley, ISSN 0021-8995, ZDB-ID 1491105-x Vol. 17 (5. 1973), p. 1589-1596 Zugang: zum Volltext ähnliche Vorschläge |
1973 | |||||||||||||||
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Ogawa, Toshio., Suzuki, Yoshitake., ... |
Determination of molecular weight distribution for polypropylene by column fractionation and gel-permeation chromatography in: Journal of Polymer Science Part A-1: Polymer Chemistry, in: Journal of Polymer Science Part A-1: Polymer Chemistry . - New York : John Wiley & Sons, Inc., ISSN 0449-296X Vol. 10 (3. 1972), p. 737-750 Zugang: zum Volltext ähnliche Vorschläge |
1972 | |||||||||||||||
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Ambler, M. R.. |
Universal calibration in GPC: A new approach for the calculation of molecular weights 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. 11 (1. 1973), p. 191-201 Zugang: zum Volltext ähnliche Vorschläge |
1973 | |||||||||||||||
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Dobbin, Christopher J. B.., Rudin, Alfred., ... |
Evaluation of GPC methods for estimation of Mark-Houwink-Sakurada constants in: Journal of Applied Polymer Science, in: Journal of Applied Polymer Science . - New York, NY [u.a.] : Wiley, ISSN 0021-8995, ZDB-ID 1491105-x Vol. 25 (12. 1980), p. 2985-2992 Zugang: zum Volltext ähnliche Vorschläge |
1980 |