Servicios Personalizados
Revista
Articulo
Indicadores
- Citado por SciELO
- Accesos
Links relacionados
- Citado por Google
- Similares en SciELO
- Similares en Google
Compartir
Revista Colombiana de Química
versión impresa ISSN 0120-2804versión On-line ISSN 2357-3791
Resumen
FUENTES, Daria A; DIAZ GRANADOS, Miguel A y PERILLA, Jairo E. A METHOD TO OBTAIN HIGH PURITY LACTIDE BY THE DEPOLYMERIZATION OF POLY(LACTIC ACID). Rev.Colomb.Quim. [online]. 2006, vol.35, n.2, pp.115-123. ISSN 0120-2804.
Lactide was synthesized by polycondenzation of lactic acid at 180 °C and a 5.3 kPa for 120 minutes, and a subsequent depolymerization at 220 °C and 5.3 kPa for 40 minutes using dehydrated tin chloride as catalyst. A new reaction separation system was used, collecting the lactide in solid form and leaving water and lactic acid as vapor. This guarantees a high purity product and avoids any reversible reaction of lactide.
Palabras clave : Lactic Acid; poly(lactic acid); lactide; biodegradable polymers.