전도성 금속과 압전성 고분자를 함유한 블록공중합체의 이방성 필름에 관한 연구

초록

We fabricated anisotropic nanocomposites films of alternating pure polymer layers and layers containing metallic silver and ferroelectric PVDF, based on thin films of symmetric diblock copolymers. In thin films of PS-PVP diblock copolymers, a multilayered nanostructure of alternating PS lamellae and PVP lamellae was self-assembled due to the surface and interfacial energies. Then, gold nanoparticles were selectively synthesized within the PVP layers. Subsequently, metallic silver was deposited in the PVP layers from the surface of gold nanoparticles in silver nitrate and hydroquinone solutions, resulting in anisotropic thin films of alternating polymeric layers and metallic layers. We also demonstrate fabrication of anisotropic nanocomposites consisting of PS layers and PMMA/PVDF layers , using thin films of PS-PMMA diblock copolymers. We characterized these nanocomposites mainly by TEM and AFM