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Measuring monolith's mechanical properties

In the last few years pharmacology has made a big step towards the new type of drugs, called biological drugs. Popularity and market for biological drugs grew exponentially, so did the need for fast and inexpensive purification. Classic liquid chromatography columns were unable to separate biological compounds ˇn industrial quantities, therefore the scientists were looking for alternatives. One of them are monolithic materials. Monolithic materials, especially methacrylate monoliths, are becoming more and more popular in separation processes due to their fast separations, low pressure drop and mechanical stability.

In the context of preparing new columns and improving existing ones, we need to know every single chemical as well as mechanical property of our monolithic material. Here we present some key data and interesting correlations between mechanical and structural properties of GMA-co-EDMA porous monolith. In the first paragraph we compare nonmodified and DEAE modified monoliths with different average pore size and porosity, regarding to their compression and tension properties. The second paragraph deals with the impact of these parameters on the permeability of the column during separation.


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