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合成了一种新的环糊精接枝聚硅氧烷衍生物 ,单环 (2 ,6 二 O 苄基 3 O 丙基 (3’) ) 六环 (2 ,6 二 O 苄基 3 O 甲基 ) β 环糊精接枝聚硅氧烷衍生物 ,并考察了其毛细管气相色谱性能 .结果表明其对一些二取代苯的位置异构体及一些光学异构体具有分离能力 ,是一种良好的毛细管气相色谱固定相 .研究发现将环糊精衍生物接枝聚硅氧烷以及将未接枝的环糊精衍生物与OV 7混涂均可降低环糊精衍生物的极性 .在较低的测试温度下 ,环糊精接枝聚硅氧烷固定相的分离能力比未接枝的环糊精衍生物及其与OV 7混涂固定相的分离能力强 ,而在高温下 ,三者的分离能力接近 .氢硅烷化反应是降低环糊精衍生物使用温度的有效方法
A new cyclodextrin grafted polysiloxane derivative was synthesized. Monocyclic (2,6-di-O-benzyl 3 O propyl (3 ’)) hexacyclo Β) cyclodextrin grafted polysiloxane derivatives were synthesized and their capillary gas chromatographic properties were investigated. The results showed that they have the ability of separation for some positional isomers of disubstituted benzene and some optical isomers Good capillary GC stationary phase.It was found that cyclodextrin derivative grafted polysiloxane and non-grafted cyclodextrin derivatives and OV 7 mixed coating can reduce the polarity of cyclodextrin derivatives. At lower test temperatures, the cyclodextrin grafted polysiloxane stationary phase has better separation capabilities than ungrafted cyclodextrin derivatives and their ability to be separated from OV 7 miscibility stationary phases, while at higher temperatures , The separation of the three close. Hydrosilylation reaction is an effective method to reduce the temperature of cyclodextrin derivatives