Synthesis of imidazolium salt-terminated poly(amidoamine)-typed POSS-core dendrimers and their solution and bulk properties

Imidazolium salt-terminated first and second generation poly(amidoamine)-typed polyhedral oligomeric silsesquioxane (POSS)-core dendrimers were prepared. Wide-angle X-ray scattering (WAXS) data for cast films of the imidazolium hexafluorophosphate (PF6)-terminated first and second generation POSS-core dendrimers reflect the same features that were described for 1-butyl-3-methylimidazolium hexafluorophosphate. Ionic conductivities for the imidazolium bis(trifluoromethanesulfonyl)imide (TFSI)-terminated POSS-core dendrimers were estimated by the ac impedance method after the addition of LiTFSI. Maximum ionic conductivity of 4.03 × 10−5 S cm−1 at 51 °C was observed for the POSS-core dendrimer of lower generation and less lithium salt addition.