For a system of ideal spherical particles, a colloidal dispersion is typically considered stable if it exhibits an electrostatic energy barrier of at least ~20 kBT. From Fig. we can confirm that the carboncarbon interactions exhibit an energy barrier between 15 and 25 kBT. Similarly we also observe that the ionomer -ionomer energy barrier is significantly lower than the threshold. As a result we should observe primary aggregation of these particles. Consequently the aggregates exhibit an effective energy barrier higher than the flocculative threshold, giving rise to a stable colloidal dispersion. The parametrisation of force fields was performed to account for the variance in the ionomer's backbone-sidechain solubility parameters as the composition of the solvent is altered .