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Radical polymerization of n-substituted methacrylamides

✍ Scribed by K. Ulbrich; J. Kopeček

Publisher
Elsevier Science
Year
1976
Tongue
English
Weight
425 KB
Volume
12
Category
Article
ISSN
0014-3057

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✦ Synopsis

The relationship between the structure of monomer and kinetics of the radical polymerization of N-ethylmethacrylamide, N-butylmethacrylamide and N-phenylmethacrylamide in methanol and in dimethylsulphoxide was investigated. The reaction order with respect to initiator is 0.5 in all cases; the order with respect to monomer is independent of the type of substituent but depends on the solvent and on the viscosity of the reaction mixture. The polymerization rate, the value of kp/k, 1'2, and the initiator efficiency decrease in the series N-phenylmethacrylamide, N-ethylmethacrylamide and N-butylmethacrylamide. The overall activation energy of polymerization for the monomers lies between 16 and 20 kcal/mol.

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