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Polypropylene hollow fibers modified with PMMA for capillary electrophoresis

✍ Scribed by Shize Qi; Milton L. Lee

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
117 KB
Volume
10
Category
Article
ISSN
1040-7685

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✦ Synopsis

A method for modification of polypropylene hollow fibers using graft Ε½ . copolymerization of polymethylmethacrylate PMMA was developed. The unsaturated residues in polypropylene were reacted with borane-dimethylsulfide, and PMMA was graft polymerized on the surface to form a stable coating which reduced the electroosmotic flow and the adsorption of biomolecules. The PMMA modified polypropylene exhibited a lower EOF than fused silica and polypropylene, close to that of bulk PMMA. Samples of nucleotides and pyridines were used to demonstrate the performance of the modified columns. Approximately 100,000 theoretical plates were obtained for lysozyme variants.

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