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Electrochemical and chemical polymerization of acrylamide

1980; Wiley; Volume: 18; Issue: 5 Linguagem: Inglês

10.1002/pol.1980.170180503

1542-9369

Suraj N. Bhadani, Yugal K. Prasad, Swapna Kundu,

Innovative Microfluidic and Catalytic Techniques Innovation

Abstract The electrochemical and chemical polymerization of acrylamide (AA) has been studied. The electrolysis of the monomer in N , N ‐dimethylformamide (DMF) containing (C 4 H 9 ) 4 NClO 4 as the supporting electrolyte leads to polymer formation in both anode and cathode compartments. The cathodic polymer dissolves in the reaction mixture and the anodic polymer precipitates during the course of polymerization. A plausible mechanism for the anodic and cathodic initiation reaction has been given. The chemical polymerization of acrylamide that has been initiated by HClO 4 is analogous to its anodic polymerization. The polymer yield increases with an increase in concentration of the monomer and HClO 4 . Raising the reaction temperature also enhances the polymerization rate. The overall apparent activation energy of the polymerization was determined to be ca. 19 kcal/mole. The copolymerization of acrylamide was carried out with methyl methacrylate (MMA) in a solution of HClO 4 in DMF. The reactivity ratios are r 1 (AA) = 0.25 and r 2 = 2.50. The polymerization with HClO 4 appears to be by a free radical mechanism. When the polymerization of acrylamide is carried out with HClO 4 in H 2 O, a crosslinked water‐insoluble gel formation takes place.