Formal analogy between the binary copolymerisation and the liquid-vapour equilibrium. III Analysis of the ternary systems

The analogy between copolymerisation and vapour-liquid equilibrium was extended to the ternary systems. A set of equations, similar to the Valvassori-Sartori ones, was obtained by using a simplified model. The comparison between the experimental and the computed data showed good agreement. The advantage of the proposed equation is that the constants involved (relative volatilities) can be obtained either from experimental data for binary systems or by using the Q and e parameters introduced in a previous work.