폴리페닐실세스키옥산을 기초로 하는 하이브리드 물질의 제조와 형태

Abstract

New hybrid materials which have low dielectric constant were prepared. Polyphenylsilsesquioxane (PPSQOH) with hydroxyl end groups was synthesized by following the existing method. Hydroxyl-functionalized polystyrene (PSOH) and hydroxyl-functionalized poly lactic acid (PLOH) were also prepared by anionic and bulk polymerization. PSPPSQ series at various composition ratios were obtained by using reaction between PPSQOH and PSOH. PLPPSQ series at various composition ratios were also obtained from reaction between PPSQOH and PLOH. These hybrid materials were characterized by 1H-NMR and FT-IR. The thermal decomposition behavior of hybrid materials was examined by thermogravimetric analysis (TGA). Their surface morphology was investigated by transmission electron microscope (TEM). The results from the TEM micrographs showed that the highly porous structure exists and the pores whose size ranged below 5 nm are regularly dispersed. These present hybrid materials would be useful for various applications to better electric and optical device.