Remote Laser Irradiation Triggered Shape Memory Polymer Nanocomposites Enabled by Gold Nanoparticle

摘要

With incorporation of gold nanorods (AuNR) into the shape memory polymer (SMP) matrix, the present study developed and demonstrated the SMP nanocomposites capable of remote triggering by low-power laser. The SMP nanocomposite film fabricated with the commercially available polyurethane based SMP polymer (EG-72D) and very low concentration of gold nanorods (～ 0. lwt%) manifested fast response to the low power (～10mW) laser. The highly efficient photothermal conversion of gold nanorods promises their great potential in developing fast response SMPs that can be triggered remotely by visible lasers. Furthermore, using the simultaneous micro-focused small- and wide-angle X-ray scattering technique we investigated the structure-property relationship of EG-72D/AuNR nanocomposite.