Hybrid free standing films of tin-polyester with polyimide are prepared by blending process which exhibit tunable dielectric constants. The maximum achievable dielectric constant for hybrid systems have 60% load of tin-polyester and their dielectric values raging from ca. 5.5-6.2, close to that of the tin homopolymers. These values show improvement over polyimide p(BTDA-HDA) having a dielectric constant of ca. 3.5 with minimum frequency dispersion maintaining low dissipation factor. The hybrid systems of 60% p(DMTDMG) with 40% polyimide stand out by their morphological and electrical properties showing a breakdown strength of 464 MV/m, with a maximum energy density of 5.9 J/cm³, slightly higher than the commercial standard BOPP with improved operational temperature ca. 140 ^oC.