Base catalysis using mesoporous silica stabilized by encapsulated acrylates

Quimica nova

Cardoso, Dilson¹  Cruz, Fernanda Tátia¹ 

[1] Universidade Federal de São Carlos, São Carlos, Brasil

关键词: mesoporous silicas;    encapsulation of polymers;    base catalysis.;   

DOI  :  10.5935/0100-4042.20140122

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The synthesis ofnew type of silicas, with structures akin to that of MCM-41, containing polyacrylate-encapsulatedmicelles in their mesopores is reported. Initially, the monomers were insertedin the aqueous micelles of cetyltrimethylammonium cations. MCM-41 was then preparedin this microemulsion. Finally, the polymerization of the acrylates was initiatedby UVC radiation. The presence of monomers and polymers in the interior of micellesin aqueous media were characterized by IR spectroscopy and small-angle Xrayscattering. The presence of this polymer increased the stability of these newmaterials in catalytic transesterification.

【 授权许可】

CC BY