苯官能化MCM-41的合成、表征、磺酰化及与二胺的反应  

Benzene Functionalized MCM-41:Synthesis,Characterization,Sulfonylation and Reactions with Diamines

作　　者：聂春发[1] 索继栓[1] 

机构地区：[1]中国科学院兰州化学物理研究所羰基合成与选择氧化国家重点实验室

出　　处：《无机化学学报》2004年第6期641-646,共6页Chinese Journal of Inorganic Chemistry

摘　　要：以三乙氧基硅基苯((C2H5O)3Si鄄Ph,((triethoxysilyl)benzene,TESB)以及正硅酸乙酯(TEOS)的混合液为硅源,以溴代十六烷基吡啶(CPBr)为模板剂,在HCl介质中合成了苯官能化的有机鄄无机杂化介孔分子筛MCM鄄41。对合成的分子筛用FT鄄IR、PXRD、TEM、N2吸附鄄脱附等手段进行了表征。结果表明,合成的苯官能化的有机鄄无机杂化介孔分子筛具有良好的介孔孔道结构。用三甲基氯硅烷对分子筛表面的Si鄄OH进行了封端处理,用氯磺酸对合成的苯官能化的有机鄄无机杂化介孔分子筛进行了磺酰化,并与各种二胺进行了反应。Benzene functionalized organic-inorganic hybrid mesoporous molecular sieve of MCM-41 type was synthesized by co-condensation of (triethoxysilyl)benzene (TESB) and tetraethoxysilane (TEOS) using cetyl pyridine bromide (CPBr) as template. The products were characterized by means of FF-IR, Powder XRD and N-2 adsorption/ desorption isotherm. The prepared organosilica was with hexagonal structure and mesoporous pore size of 2.8 nm. The terminal Si-OH on organosilica surface was capped by trimetyl chlorosilane before sulfonylation to benzene groups stretching out of the organosilica surface. Diamines were anchored to organosilica by reaction with sulfonylated benzene groups in organosilica.

关 键 词：介孔分子筛 苯 官能化 原位磺酰化 三乙氧基硅基苯 正硅酸乙酯 模板剂 分解温度 

分 类 号：O625[理学—有机化学]