PERSONAL DE APOYO
AMARILLA Fernando Enrique
artículos
Título:
Synthesis and properties of functional methacrylic copolymers
Autor/es:
TAMARA G. OBERTI; M. LAURA MOSCA; ADOLFO PESCE; FERNANDO AMARILLA; MARÍA SUSANA CORTIZO
Revista:
International Journal of Polymer Analysis and Characterization
Editorial:
Taylor and Francis Ltd.
Referencias:
Año: 2024 vol. 29 p. 146 - 155
Resumen:
In the present work, a family of functionalized statistical copolymers was synthesized by radical polymerization from a varied composition of benzyl methacrylate (BzMA) and N,N-dimethylaminoethyl methacrylate (DMAEMA) comonomers using 2,2-azobisisobutyronitrile (AIBN) as initiator. The characterization, identification, and composition analysis of each copolymer were carried out by spectroscopic methods (FTIR and 1H-NMR). Then, different properties were evaluated: molecular size was determined by measurement of intrinsic viscosity [η] in THF at 25 °C and glass transition temperature (Tg) analyzed by differential scanning calorimetry. Films were prepared by the solvent casting method from selected samples with different compositions and their mechanical properties were analyzed by tensile tests. It was observed that the composition of the functionalized copolymers substantially affects their macromolecular and mechanical properties, evidencing greater flexibility when the DMAEMA content in the copolymer increased.
