Here's what rhymes with interfacial.

Consider these alternatives

intermolecular / regular excitation / operation crosslinking / thinking ionization / information depolymerization / information stereoselectivity / activity reactivity / activity conductivity / activity vaporization / education dissociation / relation adsorbate / state torsional / proportional reflectivity / activity excitations / relations interconversion / person wetting / getting quantifying / dying electrostatic / dramatic refractive / attractive dispersion / person congruity / continuity solvation / operation