Many applications of porous materials in areas such as catalysis, adsorption, ion exchange, chromatography, and solid phase synthesis rely on the intimate contact with a surface that supports the active sites. In order to obtain large surface area, a significant number of smaller pores should be incorporated into the polymer. Types of pores The most substantial contribution to the [...]
The generally accepted mechanism of pore formation in organic polymer monolihts during a typical polymerization in the presence of a precipitant is following [1,2]: The organic phase contains both monovinyl and divinyl monomers, initiator and porogenic solvent. The free-radical initiator decomposes at a particular temperature and the initiating radicals start the polymerization process in solution. Nuclei formation The polymers [...]
As a new type of chromatographic stationary phase, monoliths have been subjected to intensive study in the last years. They differ from other supports mainly in their characteristic structure, which results in the improved chromatographic properties. While most of the chromatographic supports are particle shaped, monoliths consist of a single piece of highly porous material. In contrast to porous [...]
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Chromatographic articles