【摘要】 <正> 四苯基苯硅氧烷聚合物固定相具有较高的热稳定性,对正构烷烃有较好的色谱分离性能,但对正构醇类则不能分离。 AT-Taiar等曾用C₆H₅SiCl₃、C₁₈H₃₇SiCl₃与CCl₄制备了混合硅氧烷聚合物,应用于气相色谱,获得较好的色谱分离性能。 为改善四苯基苯硅氧炕聚合物固定相对醇类的色谱分离性能,制备了Me₂SiCl₂、C₆H₅SiCl₃、（C₆H₅）₄C₆HSi（OEt）₃的混合水解物和混合预聚合物（以下简称混合水解物和混合预聚物）,并将它们制成固定相,研究了热稳定性和气相色谱行为。更多还原

【Abstract】 The hydrolysate and prepoiymer of a mixture of dimethyldichorosilane, phenyltrichlorosilane and tetraphenylphenyltriethoxysilane were prepared. They were dissolved in benzene and then coated on the diatoma-ceous supports respectively.The coated support was heat-treated under a stream of nitrogen at 400℃ for 12 hours.The prepared column has been used at a temperature up to 270℃ without bleeding and gave a number of HETP of 1200 plates per metre. A mixture of n-alkanes containing C7 -C30could be well separated by the prepared column with the temperature programmed to 280℃. A mixture of n-alkanols containing C4OH, C6OH, C8OH, C10OH, C12OH, C14OH, C16OH and C18OH has been well separated also when the temperature was programmed to 250℃.n-C16H34 and n-C10OH have been quantitatively determined by the column.The effects of the surface properties of the supports, the weight percentage of the hydrolysate or prepoiymer used in preparing the column and the temperature of heat-treament are discussed.更多还原