Polyvinyl alcohol-co-ethylene

FIGURE 3.5 Structure of (a) polyethylene, (b) polypropylene, and (c) polyvinyl alcohol-co-ethylene (EVAL). 

Polypropylene, polyethylene, and its copolymers, including polyvinyl alcohol-co-ethylene (EVAL) and polyethylene-co-maleic anhydride, are often reported in the literature as affinity supports for different ligand chemistries (Figure 6.5). Bare polyethylene and polypropylene membranes have good thermal, mechanical, and chemical resistance but are inert and show a too high nonspecific adsorption of biomolecules. Therefore, an additional surface modification step... 

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