Preparation of monodisperse porous silica particles using poly(glycidyl methacrylate) microspheres as a template

Title:

Preparation of monodisperse porous silica particles using poly(glycidyl methacrylate) microspheres as a template

Creator:

Grama, S. and Daniel Horák

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:934a5fe6-68ed-4721-934a-232571864325
uuid:934a5fe6-68ed-4721-934a-232571864325
issn:0862-8408

Subject:

Fyziologie člověka a srovnávací fyziologie, fyziologie, physiology, microspheres, monodisperse, silica, poly(glycidyl methacrylate), porous, 14, and 612

Type:

article, články, model:article, and TEXT

Format:

print, bez média, and svazek

Description:

Monodisperse macroporous poly(glycidyl methacrylate) (PGMA) microspheres were used as a template for preparing porous silica particles. The starting polymer microspheres that were 9.3 μm in size were synthesized by multistep swelling polymerization using a modified Ugelstad technique. Subsequently, silica (SiO2) was deposited on the surface and inside the PGMA microspheres to produce poly(glycidyl methacrylate)-silica hybrid particles (PGMA-SiO2). Upon calcination of the PGMA-SiO2 microspheres, porous silica particles were formed. The morphology, particle size, polydispersity and inner structure of the silica microspheres were investigated by scanning and transmission electron microscopy. Thermogravimetric analysis and dynamic adsorption of nitrogen determined the amount of silica formed and its specific surface area. Compared with the starting PGMA microspheres, the size of the porous silica particles decreased by up to 30%. These porous silica microspheres are promising for chromotography and biomedical applications., S. Grama, D. Horák., and Obsahuje bibliografii

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Source:

Physiological research | 2015 Volume:64 | Number:Suppl 1

Harvested from:

CDK

Metadata only:

false