Rowan Group: Polymer Size Characterization Suite (sponsored in part by Wyatt Technology Corp.)

Using a Shimadzu gel permeation chromotography system equipped with a Wyatt dynamic light scattering detector, the Rowan group can easily and accurately characterize new polymers and define particle size distributions.

  • Gel Permeation Chromatography (GPC)

  • Make:  Shimadzu

    Model:  Prominence

    Key Features:

    • Detector: RI and PDA (200~800 nm, records the full UV-Vis spectra of all peaks)
    • Column: TOSOH TSKgel SuperAW4000/3000 in serie, ca. 0.5~200k elution limit
    • Solvent: THF (default), also compatible with DMF and most polar organic solvents
    • Autosampler for automatic batch measurements.
  • Dynamic Light Scattering (DLS)

  • Make:  Wyatt

    Model:  Mobius

    Key Features:

    • Dynamic light scattering, electrophoretic mobility, zeta potential and surface charge measurements
    • Size range:  0.5~1000 nm (hydrodynamic radius)
    • Cuvette measurements requires only 45~60 μL of sample solution/suspension
    • Autosampler-based flow cell measurement for DLS, and for electrophoretic mobility with ionic strength range of 0~50 mS/cm (coming soon)
    • Wyatt Dynamics software system
    • Laser wavelength:  532 nm
    • Temperature:  4-70 ºC
    • Electrode:  platinum-coated

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