Glass transition and thermal softening of poly(phenylsilsesquioxane) particles prepared using two-step acid–base catalyzed sol–gel process
作者： Kenji Takahashi , Kiyoharu Tadanaga , Akitoshi Hayashi , Atsunori Matsuda , Masahiro Tatsumisago
DOI: 10.1016/J.JNONCRYSOL.2007.07.073
关键词:
摘要: Spherical poly(phenylsilsesquioxane) (PhSiO 3/2 ) particles prepared using a two-step acid-base catalyzed sol-gel process had 'core-shell' structure: their inside and outside parts were composed respectively of PhSiO species with low high molecular weights. The the exhibited two glass transition temperatures (Tg). in showed behavior at lower temperature than those particles, indicating that Tg is mainly dependent on materials' respective
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