共缩聚法制备功能化P(St-MPS)/MCM-41核壳复合微球

Synthesis of Functionalized P(St-MPS)/MCM-41 Core-shell Composite Microspheres by Co-condensation Synthesis Method

以聚(苯乙烯-γ-甲基丙烯酰氧基丙基三甲氧基硅烷)(P(St-MPS))微球为核模版,十六烷基三甲基溴化铵为壳模版,以P(St-MPS)微球、正硅酸乙酯与MPS的混合物为硅源,直接在无皂乳液中通过共缩聚方法合成表面链有碳—碳双键功能基的P(St-MPS)/MCM-41核壳复合微球;采用TEM,XRD和FT-IR对产物进行了表征。结果表明,表面功能化的P(St-MPS)/MCM-41核壳复合微球可以直接在无皂乳液中一步合成,所制备的核壳复合微球粒径约为260 nm,壳层约为10 nm。

Poly(styrene-γ-methacrylic propyl trimethoxysilane)/MCM-41 [P(St-MPS)/MCM-41] core-shell composite microspheres functionalized by Carbon-carbon double bond group were directly obtained by co-condensation synthesis method in soap-free emulsion using cetyltrimethyl ammonium bromide and P(St-MPS) microspheres as co-templates,P(St-MPS) microspheres,tetraethyl orthosilicate and MPS as silica source.The synthesized samples were characterized by XRD,TEM and FT-IR.The results show that functionalized P(St-MPS)/MCM-41 core-shell composite microspheres are synthesized by one step directly in soap-free emulsion.The diameter of the functionalized P(St-MPS)/MCM-41 core-shell composite microspheres and the thickness of the shell were about 260 nm and 10 nm,respectively.