聚丙烯酰胺凝胶的制备 we m (Cn,-22mn-)em Acrylamide Methylenebisacrylamide S2-(persulfatel 2 SO (sulfate free radicall CONH2 CONH2 -CH2-CH-CH2-CH-CH,-CH- CONH CH2 CONH -CH2-CH-CH,-CH-CH2-CH- CONH2 CONH2聚丙烯酰胺凝胶的制备