Current Scenario and Future Prospective of Ionic-Liquid Doped Polymer Electrolyte for Energy Application

Solid polymer electrolyte (SPE) films based on poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF–HFP) with salt and ionic-liquid (IL) are synthesized using the solution-cast technique and summarized in this review. Doping ILs or salts increases ionic conductivity up to the device level. This is further confirmed using differential scanning calorimetry (DSC) and X-ray diffraction (XRD) measurements. Polarized optical microscopy (POM) affirms that enhancement in ionic conductivity is due to increase in amorphous nature of film. The complex nature of polymer electrolyte films is confirmed using Fourier transform infrared (FT-IR) spectroscopy. Overall results show that doping IL into polyether matrix is advantageous material playing a dominant role in electrochemical devices.     

Pyrazoline derivatives: A convenient synthetic route to new pyrazolo-benzothia-(oxa) or diazepinone derivatives

New pyrazolo-[3,4-b]-[1,5]-benzoazepinone derivatives are reported. One pot reactions of 5-chloro-4-carboxy-1-phenyl (3-substituted) pyrazole derivatives with o-thioaminophenol, o-phenylenediamine, and o-aminophenol derivatives were realized. The influences of the polarizability of the heteroatoms on the reaction rates and chemical yields are discussed. © John Wiley & Sons, Inc.