Fecha de publicación: 15/08/2024 Fuente: WIPO "circular economy" A method for obtaining N-vinylformamide including the reaction between an acetaldehyde and a formamide, one of the two, preferably both, being at least partially renewable and non-fossil. A bio-sourced N-vinylformamide monomer, a bio-sourced polymer obtained by polymerization including at least N-vinylformamide monomer, and the use of the polymer in various technical fields.