4、allinestructuresandOVPOSScouldformcubiccrystalsonascalefromseveralmicrometerstodozens of micrometers.TGAresultsrevealedthatallthethreeexhibitedhighthermostability.TheinitialtemperaturesofthethermaldecompositionforOVPOSS,OPPOSSandOAPOSSare220℃,450℃and420℃,respectively.Thisindicatesthatpheny