A gel permeation chromatography calibration method for a broad molecular weight distribution polymer

Gel Permeation Chromatography . I . A New Method for Molecular Weight Distribution of High Polymers

Polystyrene gels crosslinked in the presence of dilucnts have been iliatie in tinc-iiii.sli bead forni suitable for packing into chromatographic rolurnns. A series of narrow molecular weight range pol) mer fractions w&s eluted through such columns with aromatic and chlorinated solvents. EfHuent concentrations were detected and recorded by a continuous differential refractoineter. The fractions ...

Gel permeation chromatography coupled to fourier transform mass spectrometry for polymer characterization.

We report an on-line coupling of gel permeation chromatography (GPC) to Fourier transform mass spectrometry (FTMS) using a modified commercial electrospray ionization (ESI) interface. Selected oligomer profiles for the sodiated (1+ through 5+ charge states) oligomer ions of a narrow-molecular-weight poly(methyl methacrylate) were generated and used for obtaining a calibration curve. Using the M...

High Performance Gel Permeation Chromatography of Polymers

The determination of the molecular weight distribution by gel permeation chromatography requires the establishment of a molecular weight calibration and efficient columns in order to minimise chromatogram broadening. The separation process is described in terms of steric exclu— sion, retardation and partial exclusion mechanisms in order to show how the universal calibration method may be influe...

Rheological Method for Determining Molecular Weight and Molecular Weight Distribution

Characterisation of Nitrocellulose by Gel Permeation Chromatography Part 1 Technique and Calibration

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