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Handbook of Size Exclusion Chromatography and Related ...

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9<br />

<strong>Size</strong> <strong>Exclusion</strong><br />

<strong>Chromatography</strong><br />

<strong>of</strong> Acrylamide<br />

Homopolymer<br />

<strong>and</strong> Copolymers<br />

Fu-mei C. Lin<br />

University <strong>of</strong> Pittsburgh<br />

Pittsburgh, Pennsylvania, U.S.A.<br />

1 INTRODUCTION<br />

Acrylamide monomer is a white crystal, available commercially as a 50 wt%<br />

aqueous solution. Acrylamide monomer can be polymerized to a very-highmolecular-weight<br />

(10 6 –10 7 g/mole) homopolymer, copolymer, or terpolymer.<br />

Polyacrylamide (PAM) is a nonionic polymer. The anionic polyacrylamide species<br />

can be obtained from the hydrolysis <strong>of</strong> the amide ( 2CONH 2) functional group <strong>of</strong><br />

the homopolymer, or from the copolymerization <strong>of</strong> acrylamide with an anionic<br />

monomer, such as acrylic acid (AA) or 2-acrylamino 2-methyl propane sulfonic<br />

acid (AMPS). Acrylamide can be copolymerized with a cationic monomer, such as<br />

dimethyl diallylammonium chloride (DMDAAC) or acryloyloxyethyl trimethyl<br />

ammonium chloride (ALETAC), to form the cationic acrylamide polymer.<br />

© 2004 by Marcel Dekker, Inc.

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