In this paper, we synthesized two types of epoxy group containing POSS derivatives: mono and poly Double-Decker Silsesquioxanes (mono DDSQ and poly DDSQ). The performance of epoxy resin with different DDSQ loading ratios was investigated, including curing kinetics, thermal, mechanical and surface properties. Both mono and poly DDSQ significantly improved thermal and mechanical properties of the epoxy thermosets. The mono DDSQ showed more flexible structure and toughened the epoxy resin better, while the branched poly DDSQ exhibited better thermal resistance. In addition, the DDSQ altered surface of the epoxy resin from hydrophilic to hydrophobic.

中文翻译：

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双层倍半硅氧烷作为环氧树脂的改性剂的合成与评价

在本文中，我们合成了两种含环氧基的POSS衍生物：单和聚双层倍半硅氧烷（单DDSQ和聚DDSQ）。研究了具有不同DDSQ负载比的环氧树脂的性能，包括固化动力学，热，机械和表面性能。单和聚DDSQ均可显着改善环氧热固性树脂的热性能和机械性能。单DDSQ显示出更多的柔性结构并更好地使环氧树脂增韧，而支链的聚DDSQ显示出更好的耐热性。另外，DDSQ将环氧树脂的表面从亲水性改变为疏水性。