Porous Monolithic Polymers

Porous monolithic polymers, developed over the last ten years or so, are continuous surfaces of polymer prepared using a molding process that in some chips employs the channels in the chips as molds. Using a channel together with a polymer permits varying the surface areas that contact the flow. If the polymer fills a large portion of a channel's cross-section, more active surface encounters a smaller moving stream. Increasing the probability of contact increases the likelihood of more molecules leaving highly dispersed samples thus facilitating more complete extractions. Additionally, we may alter the porosities of the polymer if we employ differing combinations of porogenic solvents and change the conditions for the reactions (Ref: Svec and Frechet).

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