Catálise básica usando sílica mesoporosa estabilizada por acrilatos encapsulados

Química Nova

Fernanda Tátia Cruz¹  Dilson Cardoso¹ 

[1] ,Universidade Federal de São Carlos Departamento de Engenharia Química São Carlos SP ,Brasil

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

DOI  :  10.5935/0100-4042.20140122

来源: SciELO

【 摘 要 】

The synthesis of new type of silicas, with structures akin to that of MCM-41, containing polyacrylate-encapsulated micelles in their mesopores is reported. Initially, the monomers were inserted in the aqueous micelles of cetyltrimethylammonium cations. MCM-41 was then prepared in this microemulsion. Finally, the polymerization of the acrylates was initiated by UVC radiation. The presence of monomers and polymers in the interior of micelles in aqueous media were characterized by IR spectroscopy and small-angle Xray scattering. The presence of this polymer increased the stability of these new materials in catalytic transesterification.

【 授权许可】

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