Effect of ZnO nanoparticles on the morphology, dielectric, electro-optic and photo luminescence properties of a confined ferroelectric liquid crystal material

Polymer/liquid crystal nanocomposites for energy storage applications

“…Thermogravimetric analysis (TGA) and their derivative curves for pure PVC/PANI blends, PVC/PANI/LC‐E7 and their nanocomposites with CCTO nanoparticles were done to assess the thermal stability as shown in Figures 5 and 6. Generally, pure PVC/PANI decomposed into two steps; the first mass loss step for PVC (60%), is associated with the release of HCl 24,25 : ‐[CH 2 CHCl]‐ → ‐[CHCH]‐ + HCl, with the second mass loss. From these figures, it is clear that, all samples ratios decomposed in two steps and demonstrated a preliminary small weight loss 1% to 2% from 50 C to 150°C ascribed to the elimination of volatile components such as water.…”

“…For this process, at first of PVC was added to THF and stirred till completely it dissolved at the ambient temperature. Then mixed with different ratios (10,25, and 50 wt%) of PANI. Then 5 wt% nematic droplets of E7 and 3 wt% BYK plasticizer were added to the PVC/PANI mixtures.…”

“…Thermogravimetric analysis (TGA) and their derivative curves for pure PVC/PANI blends, PVC/PANI/LC-E7 and their nanocomposites with CCTO nanoparticles were done to assess the thermal stability as shown in Figures 5 and 6. Generally, pure PVC/PANI decomposed into two steps; the first mass loss step for PVC (60%), is associated with the release of HCl 24,25 : -[CH 2 CHCl]-! -[CH CH]-+ HCl, with the second mass loss.…”

“…22,23 However, the development of unconventional techniques for synthesis of nanocomposites combining the properties of polymer host matrix, LC elements and the unique characteristics of nanoparticles, represent a new challenge for researcher and considerable subject of investigation. 24,25 Most recent research concerns on doping nanoparticles into PDLCs to improve the electro-optical performance. PDLCs were doped with MNPs nanoparticles for good electro-optic contrast and avoiding pouring effects in the cells.…”

“…The implementation of liquid crystal “E7” as nematic droplets in PDLC is adopted for enhancing the conductivity and homogeneity of the polymer blend 22,23 . However, the development of unconventional techniques for synthesis of nanocomposites combining the properties of polymer host matrix, LC elements and the unique characteristics of nanoparticles, represent a new challenge for researcher and considerable subject of investigation 24,25 . Most recent research concerns on doping nanoparticles into PDLCs to improve the electro‐optical performance.…”