[9p-PB3-1~28] 12.1 Fabrications and Structure Controls

[9p-PB3-27] Pore Size Control of Porous SiO₂ Nanofilms from Silsesquioxane-Containing Polymer Nanosheets

〇Yuya Ishizaki¹, Shunsuke Yamamoto¹, Tokuji Miyashita¹, Masaya Mitsuishi¹ (1.IMRAM, Tohoku Univ.)

Keywords:porous thin film, silsesquioxane, polymer nanosheet

In this study, we describe the formation and pore size control of porous SiO₂ nanofilms from Silsesquioxane (SQ)-containing polymer nanosheets consisting of poly(N-dodecyl acrylamide) (pDDA) and SQ-containing random copolymer (p(DDA/SQ)). pDDA:p(DDA/SQ) nanosheets were prepared by Langmuir–Blodgett technique and porous SiO₂ nanofilms were obtained from pDDA:p(DDA/SQ) nanosheets by photo-oxidation under oxygen atmosphere and room-temperature. The pore size of the porous SiO₂ nanofilm was estimated by small angle X-ray scattering measurements. As the result, the pore size of the porous SiO₂ nanofilm was successfully controlled with range of 3.7–5.0 nm by tuning pDDA:p(DDA/SQ) molar ratio.