EVALUACIÓN DE HIDROGELES DE POLI (ACRILAMIDA-CO-METIL METACRILATO) SINTETIZADOS EN DIFERENTES SOLVENTES

Authors

  • Rafael O. Moreno
  • Evis K. Penott-Chang
  • Marí­a G. De Souza
  • Blanca Rojas de Gáscue
  • Alejandro J. Müller

Abstract

Poly(acrylamide–co-methyl methacrylate) hydrogels were synthesized by radical copolymerization using different monomer ratios in water and ethanol. N,N- methylbisacrylamide (MBAm) was used as crosslinker and ammonium persulfate (PSA) as initiator. The hydrogels were characterized by FT-IR and gravimetry. Using gravimetry, the swelling parameters were obtained: swelling equilibrium index, water content, transport exponent n and swelling rate constant at 37 ºC. It was found that hydrogels presented anomalous non Fickian diffusion mechanism. Nevertheless, hydrogels synthesized in ethanol show a significant increase in n, with values close to 1. Moreover, these hydrogels exhibited higher swelling percentages that might indicate a decrease in the network crosslink density.

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Published

2014-04-26

How to Cite

Moreno, R. O., Penott-Chang, E. K., De Souza, M. G., Rojas de Gáscue, B., & Müller, A. J. (2014). EVALUACIÓN DE HIDROGELES DE POLI (ACRILAMIDA-CO-METIL METACRILATO) SINTETIZADOS EN DIFERENTES SOLVENTES. LatinAmerican Journal of Metallurgy and Materials, (1), 43–44. Retrieved from https://www.rlmm.org/ojs/index.php/rlmm/article/view/599

Issue

2014, S6

Section

Supplementary Articles

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