The equation of state of polymers : Isothermal compressibility equations of state

Isothermal compressibility equations of state
The equation of state of polymers

Authors : Bernard LE NEINDRE, Patrick CANCOUËT

Publication date: November 10, 2009 | Lire en français

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1. Isothermal compressibility equations of state

The temperature-pressure (T-P) superposition principle implies that ln (V/V ₀ ), is a function of the reduced pressure P/B ₀ , according to the relationship :

ln (V / V_{0}) = f (\frac{P}{B_{0}}) = - \frac{P}{B_{0}} + \frac{B_{1}}{2!} {(\frac{P}{B_{0}})}^{2} - \frac{1}{3!} (2 B_{1}^{2} - B_{0} B_{2}) {(\frac{P}{B_{0}})}^{3}

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Three-parameter empirical or semi-empirical equations of state

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References

(1) - SANCHEZ (I.C.), CHO (J.), CHEN (W.J.) - Compression of liquids and solids: universal aspects. - J. Phys. Chem., 97, p. 6120 (1993).
(2) - SANCHEZ (I.C.), CHO (J.), CHEN (W.J.) - Universal response...

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Isothermal compressibility equations of state The equation of state of polymers

1. Isothermal compressibility equations of state

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Isothermal compressibility equations of state
The equation of state of polymers