Study on physicochemical of poly-(ε-caprolactone)

OBJECTIVE To study the physicochemical properties of poly-(e-caprolactone)(PCL).METHODS To determine the melting point,viscosity,intrinsic viscosity,crystallinity and X-ray powder diffraction pattern (XRD) of PCL.RESULTS The physicochemical properties of poly-(e-caprolactone) were correlated with its molecular weight.The higher the molecular weight,the higher melting point,the higher viscosity,the bigger intrinsic viscosity,and the higher heat degradation temperature.The XRD profiles showed that PCL was in semicrystalline state and had the similar diffraction peaks.CONCLUSION The determined properties of PCL were correlated with its molecular weight,but the crystallinity value was changed with its molecular weight.