摘要
合成了几种新型的含氯丙基的取代聚硅氧烷,其热稳定性可达300～325℃,能较好地分离非极性和中等极性化合物。当固定相的苯基含量高达50％时,用8％的DCP能使其有效交联。
The novel chloropropylpolysiloxanes were synthesized and used for gas chromatographic stationary phase. This new, moderately polar stationary phases exhibit higher-thermal stability (300-325℃) and can be used to separate non-polar and moderately polar compounds——n-alkanes, alkyl-benzenes, halogenated alkanes, esters and ketones. The McReynolds constants of these stationary phases are apparently higher than that of QV-17 and very similar to that of QF-1. The thermal stability and separation power of the alternating condensation polymers are better than that of the random copolymers. The stationary phase with 50% phenyl content could be crosslinked by 8% dicumyl peroxide. The vinyl group attached to the main chain may facilitate the crosslinking.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1990年第5期471-475,共5页
Chemical Journal of Chinese Universities
基金
中国科学院科学基金
关键词
气相色谱
固定相
氯丙基
聚硅氧烷
Chloropropylpolysiloxanes, Gas chromatographic stationary phase, Condensed polymer
