초록 |
Nanopores in thermally stable polymer matrix were generated by utilizing wetting agents with water pressure without metal salts as additive. When specific polymer films fabricated with wetting agents as an additive was exposed to water pressure, nano-pores were generated and could be easily controlled by the pressure-strength. Actually, the chains became weakened in the portion of polymers since wetting agents wer surrounded by water molecules, resulting in plasticization for generating nano-pores. Thus, we succeeded in preparing the porous polymers with high porosity of 78 %. |