| 초록 |
Thermoplastic poly(carbonatediol)-polyurethane (PCD-PU) series were synthesized using one-fixed IPDI and three types of PCD, which functionalized as the different molecular weight and with/without the pendant alkyl groups. Mechanical and physical properties of PCD-PU were evaluated by UTM, DSC, UV-spectrometer, and WVTR analysis. The transmittance of individual PCD-PU gradually increased from 77.82% to 92.15% with the presence of the pendant alkyl group. Water vapor permeability values of PCD-PU series varied from 200 to 36 g/m2day. |
