Does anyone know how to distinguish between the amorphous phases of different polymers (apart from the glass transition )?

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Valentin Dikov

Dear researcher,

You should try to estimate very carefully the density of the amorphous phase and find its relationship with the corresponding experimental conditions.

Thomas Mayerhöfer

Give infrared and/or Raman microspectroscopy a try. Since the vibrational signatures of different polymers are also differing and you obtain also signals from amorphous samples, these should be the method(s) of choice.

Jasim Ahmed

Check by XRD so you can distinguish between amorphous and crystalline polymers.