Chromatography of Polymers. Hyphenated and Multidimensional by Theodore Provder (Eds.)

By Theodore Provder (Eds.)

content material: Quantitation in research of polymers by way of a number of detector SEC / Bernd Trathnigg --
Use of multidetector SEC for opting for neighborhood polydispersity / T.H. Mourey, K.A. Vu, and S.T. Balke --
The Chevron method of GPC axial dispersion correction / Wallace W. Yau --
Axial dispersion correction for the Goldwasser approach to absolute polymer Mn decision utilizing SEC-viscometry / Wallace W. Yau --
Polymer characterization by means of extreme temperature measurement exclusion chromatography applying molecular weight delicate detectors / S.J. O'Donohue and E. Meehan --
Use of the single-capillary viscometer detector, online to a dimension exclusion chromatography approach, with a brand new pulse-free pump / Raniero Mendichi and Alberto Giacometti Schieroni --
Molecular weight characterization of polymers by way of mixed GPC and MALDI TOF mass spectroscopy / J.L. Dwyer --
Quantitation within the research of oligomers by means of HPLC with evaporative mild scattering detector / Bernd Trathnigg, Manfred Kollroser, Dušan Berek, Son Hoai Nguyen, and David Hunkeler --
merits of making a choice on the molar mass distributions of water-soluble polymers and polyelectrolytes with FFFF-MALLS and SEC-MALLS / W.-M. Kulicke, S. Lange, and D. Heins --
Cross-fractionation of copolymers utilizing SEC and thermal FFF for decision of molecular weight and composition / solar Joo Jeon and Martin E. Schimpf --
Colloidal debris as immunodiagnostics : instruction and FFF characterization / Teresa Basinska and Karin D. Caldwell --
Molecular characterization of advanced polymers through coupled liquid chromatographic systems / Dušan Berek --
Two-dimensional liquid chromatography of sensible polyethers / Bernd Trathnigg, Manfred Kollroser, M. Parth, and S. Röblreiter --
Liquid chromatography less than restricting stipulations : a device for copolymer characterization / A. Bartkowiak and D. Hunkeler --
complete adsorption-desorption/SEC coupling in characterization of complicated polymers / Son Hoai Nguyen and Dušan Berek --
measurement exclusion chromatography-FTIR research of polyethylene / James N. Willis, James L. Dwyer, Xiaojun Liu, and William A. darkish --
elements affecting molecular weight and branching research of metallocene catalyzed polyolefins utilizing online GPC with mild scattering, and viscometry detection / Trevor Havard and Peter Wallace --
Characterization of polyesters and polyamides via SEC and lightweight scattering utilizing 1,1,1,3,3,3-hexafluoro-2-propanol as eluent / Antonio Moroni and Trevor Havard --
Degradation of substituted polyacetylenes and impression of this approach on SEC research of those polymers / Jiří Vohlídal and Jan Sedláček --
research of polysaccharides by way of SEC3 / D.T. Gillespie and H.K. Hammons --
program of multi-detector SEC with a publish column response approach : conformational characterization of PGG-glucans / Y.A. Guo, J.T. Park, A.S. Magee, and G.R. Ostroff.

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Extra info for Chromatography of Polymers. Hyphenated and Multidimensional Techniques

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Vol. (mL) Figure 3. Reconstructed (calc) and experimental (exp) DRI chromatograms for 1:1 blend of linear and branched polyester (Case IB). ; ACS Symposium Series; American Chemical Society: Washington, DC, 1999. ch002 28 3ι 14 • 16 > 18 Ret. Vol. (mL) 1 20 Figure 4. Calibration curves from LS and D V detection for 1:1 blend of PS and PDMS (Case 1C). ; ACS Symposium Series; American Chemical Society: Washington, DC, 1999. 29 and PDMS have different Mark Houwink constants. However, the difference shown is inaccurate because while the M ,i curve from the D V detctor is valid, the M is not.

Therefore, the choice of which method to use depends largely on the nature of the sample elution curve shape and the GPC detector signal-to-noise conditions. In theory, Chevron-2 is also applicable for nonlinear calibration curve by using the local calibration slope of D (v) at every retention volume. Such practice however will add more detector noise effects and more precision problems to the calculations when dealing with real experimental data. 2 What are presented in this paper are two theoretical models of GPC axial dispersion correction.

ACS Symposium Series; American Chemical Society: Washington, DC, 1999. ch002 28 3ι 14 • 16 > 18 Ret. Vol. (mL) 1 20 Figure 4. Calibration curves from LS and D V detection for 1:1 blend of PS and PDMS (Case 1C). ; ACS Symposium Series; American Chemical Society: Washington, DC, 1999. 29 and PDMS have different Mark Houwink constants. However, the difference shown is inaccurate because while the M ,i curve from the D V detctor is valid, the M is not. That is, equation 5 rather than equation 6 should have been used to calculate M i, but this would not be feasible for an unknown sample.

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