Isosorbide based PET (PEIT) is interest in polymer which has isosorbide monomer that is renewable sources such as corn. In addition, PEIT has good chemical resistance. However, there is drawback which is low mechanical properties as increasing the isosorbide content. In this study, polycarbonate used to make up for drawback of mechanical properties of PEIT and chemical resistance of Polycarbonate (PC). The effect of polycarbonate of blends on morphology, thermal properties and miscibility were investigated. The compatibility of blends was investigated by DSC. The thermal properties of blends were performed by TGA. The morphology of blends was investigated to evaluate the miscibility by FE-SEM.