Fox equation Tg calculator

Fox Equation Tg Calculator v2 | PolymerDNA

Predict the glass transition temperature of a copolymer/blend. Select monomers from the verified database or enter custom values. Weight fractions auto-normalise.

The Fox Equation

1 / Tg=

Predicted Tg — Copolymer / Blend

 

Enter values above

Data Sources & References

  1. Mark, J.E. (Ed.) — Physical Properties of Polymers Handbook, 2nd Ed., Springer, 2007
  2. Brandrup, J., Immergut, E.H., Grulke, E.A. (Eds.) — Polymer Handbook, 4th Ed., Wiley-Interscience, 1999
  3. Kricheldorf, H.R., Nuyken, O., Swift, G. (Eds.) — Handbook of Polymer Synthesis, 2nd Ed., Marcel Dekker, 2005
  4. Mark, J.E. (Ed.) — Polymer Data Handbook, Oxford University Press, 1999
  5. Meyers, R.A. (Ed.) — Encyclopedia of Physical Science and Technology — Polymers, 3rd Ed., Academic Press, 2001
  6. Van Krevelen, D.W., Te Nijenhuis, K. — Properties of Polymers, 4th Ed., Elsevier, 2009
  7. Fox, T.G. — Influence of Diluent and of Copolymer Composition on the Glass Temperature of a Polymer System, Bull. Am. Phys. Soc., 1(3), 123, 1956

Enter Tg in Kelvin or append c for Celsius (e.g. 105c). Enter weight in any unit — grams, parts, or fractions — the calculator normalises automatically. For copolymers with strong specific interactions (hydrogen bonding, ionic groups), the Fox equation gives an estimate; verify with DSC.

Built by PolymerDNA — more formulation references in the Formulae Masterbook.

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