| 초록 |
Polydimethylsiloxane-polyurethane (PDMS-PU) series were successfully synthesized based on the molecular weights dependence of siloxane polyol and one fixed polyethylene glycol polyol as the separated soft segments. The mechanical, surface, and water-barrier properties of the resultant PDMS-PUs were evaluated using Universal Testing Machine (UTM), Contact angle, and Water Vapor Transmission Rate (WVTR) Tester. Rich PDMS phase at the air-polymer interface led to the effective phase separation between PDMS segments and urethane segments. Surface energies of PDMS-PUs were the molecular weight and content dependence of PDMS. The optical transmittance and WVTR of PDMS-PU were analyzed to apply as an encapsulation material for electronic devices. |
