| 초록 |
Bisphenol A(BPA) based Polycarbonate is widely used in many industrial fields due to its excellent physical properties such as high thermal stability and transparency. BPA is a petroleum-based monomer, which has a hormone disturbance for human body. An eco-friendly isosorbide(ISB) was used instead of BPA. and that have good transparency but too brittleness. For that reason, we carried out research of isosorbide-based copolycarbonate by polycondensation. A series of copolycarbonates of monomes such as ISB, BPA, and diphenyl carbonate(DPC) with various mole ratio were successfully synthesized under cesium carbonate (Cs2CO3) as a catalyst. Isosorbide-based copolycarbonates were characterized via Gel permeation chromatography (GPC) and Fourier-transform infrared spectroscopy(FT-IR). Furthermore It will be prove that change in the physical properties of the copolycarbonate with the amount of isosorbide-based copolycarbonate and commercial polycarbonate. |
