Resumo

LEDEZMA-PEREZ, Antonio S.; ROMERO-GARCIA, Jorge; ARIAS-MARIN, Eduardo  e  VARGAS-GUTIERREZ, Gregorio. Estudio de un nuevo cemento de polialquenoato vítreo preparado con poli(ácido γ-glutámico) de origen microbiano. Superf. vacío [online]. 2006, vol.19, n.2, pp.13-17. ISSN 1665-3521.

This study described the use of a microbial biopolymer poly(γ-glutamic acid) (γ-PGA) in the preparation and setting of a new polyalkenoate cement. In this study, the effect of biopolymer molecular weight, glass particle size, powder/liquid and powder/polymer ratios over the compressive strength of the cements were analyzed. Also we described the infrared spectroscopy (IRFT) characterization of the cement. The performance of these new materials was compared against a commercial restorative polyalkenaote cement.

Palavras-chave : Vitreous polyalkenoate cement; Poly(g-glutamic acid); Acid-basic cements.

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