Base-mole-fraction

In the two above equations, l is referred to as the component and ) k, m, and m are referred to the segments in each component, Xy is the segment-based mole fraction of segment species in component l only. The mole fractions of segments in the whole solution and in components are defined as below ... 

Sum Base - sum of mole fractions of CaO, MgO, FeO. B/A - sum base/mole fractions of Si02 + AI2O2. 

Voltrme fractiorts imply a temperature dependence and, as they are defined in eqttation (14), neglect excess voltrmes of mixing and, very often, the densities of the polymer in the state of the solution are not known correctly. However, volume fractions can be calcrrlated without the exact knowledge of the polymer molar mass (or its averages). Base mole fractions are sometimes apphed for polymer systems in earlier literature. The valtre for Mo is the molar mass of a basic rmit of the polymer. Sometimes it is chosen arbitrarily, however, and has to be specified. 

Wa = Wi frB = XbTbI XiVi usually with Ta = 1 base mole fraction ... 

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