| 초록 |
Poly(vinylidene fluoride)(PVDF)/trisilanolphenyl polyhedral oligomeric silsesquioxane (TSP-POSS) nanocomposites with different TSP-POSS content were prepared by solution blending. Crystal transformation and thermomechanical properties of PVDF/TSP-POSS nanocomposite were investigated by means of wide angle X-ray diffraction(WAXD), Fourier-transform infrared spectroscopy(FT-IR), thermogravimetric analysis(TGA), differential scanning calorimetery(DSC) and dynamic mechanical ananlysis(DMA). WAXD pattern, FT-IR spectra and crystal melting behavior examined by DSC suggested that only α-phase crystals are existed in neat PVDF while both α- and β-phase crystals are coexisted in the PVDF/TSP-POSS nanocomposite, indicating that a β-crystal was favorably produced by TSP-POSS in the PVDF matrix. |
