3.2.4. Calculation of Theoretical Tg with the Gordon–Taylor Equation

Theoretical T_g was calculated with the Gordon–Taylor equation:

where T_g12 and T_g1 are the T_g of the co-amorphous samples and the components and ω_i is the mass fraction of the component i. K is a constant and can be calculated by the equation:

where ρ₁ and ρ₂ are the densities of the two components (ρ_{amorphous−CAR} = 1.24 g/cm³) [22]. No information for the amorphous TRP was available in the literature, so it was calculated by the following equation:

where ρ_{crystalline−CAR} = 1.26 g/cm³, ρ_{crystalline−TRP} = 1.30 g/cm³ [22,23].