摘要
采用发散式合成法合成了末端为烯丙基的第一代(G1)与第二代(G2)硅碳烷树枝状大分子,通过硅氢加成反应使其进一步与球形硅胶反应,将硅碳烷树枝状大分子的两代分子分别键合于硅胶上,制备了有机硅树枝状大分子-硅胶键合固定相,对其进行了物理化学性能的表征及色谱性能的初步评价.G2-硅胶键合固定相的分离性能优于G1-硅胶键合固定相,对醇类,烷基取代苯类,N-取代苯类,甲基丙烯酸酯类,邻苯二甲酸酯类等具有良好的分离效果.
Divergently synthesized Carbosilane dendrimers- generation 1 （ C-n ） and generation 2 （ G2 ） with allyl end groups are bonded to silica gel. Reactions between the dendrimers and acid-processed silica gel take place with toluene reflux and organic base as catalyst. Chemically bonded silica gel is characterized by TEM, IR, and other methods. The chemically modified silica gels are packed into HPLC column and their seperation characterization are evaluated. G2-bonded silica gel is effective to separate enantiomers of alcohol, alkyl-substituted benzene, N-substituted benzene, metacrylic acid ester and phthalate.
出处
《山东大学学报（理学版）》
CAS
CSCD
北大核心
2005年第6期83-88,共6页
Journal of Shandong University(Natural Science)
