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Modeling Spinodal Temperature Prediction in Ternary Polymer Blends

Explore the fitting of SANS data using the ternary RPA model to predict the spinodal temperature in a blend with hydrogenated and deuterated polymers. Obtain Flory-Huggins interaction parameters for 3 pairs, including those of 2 hydrogenated polymers.

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Modeling Spinodal Temperature Prediction in Ternary Polymer Blends

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  1. Chapter 40 – SANS FROM TERNARY POLYMER BLENDS 40:2. THE TERNARY RPA MODEL 40:3. FITTING OF THE SANS DATA

  2. 40:2. THE TERNARY RPA MODEL Recall: Form factors: Excluded volume factors: Scattering factors: Cross section:

  3. 40:3. FITTING OF THE SANS DATA Flory-Huggins interaction parameters:

  4. COMMENTS -- The RPA was used to predict the spinodal temperature for a ternary polymer blend mixture with 2 hydrogenated and 1 deuterated polymer. -- The Flory-Huggins interaction parameters for the 3 pairs were obtained even for the pair comprised of 2 hydrogenated polymers.

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