●●● ●●●● 2. Experimental principles ●●●●● ●●●● ●●●●● ●●●● Polyacrylamide can be synthesized from acrylamide triggered by ammonium persulfate: CONH CON Polyacrylamide can hydrolyze in alkaline solution, which generates partially hydrolyzed polyacrylamide -ICH2-CHfn yH,O+ NAoh- CONH -FCH2-CHixFCH2-CHtv-FCH2-CH1+(+zNH31 CONH 2 COOH COoNa2. Experimental principles Polyacrylamide can be synthesized from acrylamide triggered by ammonium persulfate: Polyacrylamide can hydrolyze in alkaline solution, which generates partially hydrolyzed polyacrylamide: nCH2 CH CONH2 (NH4 ) 2 S2 O8 [CH2 CH] n CONH2 [CH2 CH] n CONH2 + yH2 O + zNaOH [CH2 CH] x CONH2 [CH2 CH] y COOH [CH2 CH]z COONa + (y + z)NH3