Hexaphenyldisil} xane; Oxy his (triphenyl silane); 171 S (iri phenylsilyl) ether; Triphenylsayl et al. (:}Hs5i05iC, Sc boiling point 494 C. melting point 22fi}:. refractive index. Anionic. 68 hexaphenyldisiloxane is chain like, with a ring of 5.) The structure of the intestinal segment was determined, and its bond angle is greater than 1.} (i '} siloxane.} The bond can be broken by a series of halides. Chuanlai prepared high polymer shoulder plastic and rubber properties. The small molecular weight is an oil like substance, which can be used as silicone oil. The large molecular weight is a solid substance, which can be used as plastic and rubber.