In summary, we exclude for simplicity from further consideration the two polymers (#7 and #32 in Fig. ) where the monomers' HOMOs are insufficient to describe the valence orbitals. We also excluded polymers #27 and #31, because of insufficient quality of the torsional potential fitting, and polymers #22, #24, #25 and #26 because of insufficient quality of the HOMO-HOMO coupling fitting. In SI Tables. T1 and T2, we have given the fitting parameters corresponding to the monomers and monomer pairs of this full set of 28 polymers respectively, while in Table . T3, we have tabulated the corresponding properties of the polymers. Since this set of 28 polymers roughly represents the full chemical sphere of amorphous polymers, we deduce that the present reduction scheme should be applicable for high throughput screening purposes.