SciELO - Scientific Electronic Library Online

vol.23 número5Superficies Nanoestructuradas de la Aleación Ti6Al4V: Influencia del Tiempo de Electropulido índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Información tecnológica

versión On-line ISSN 0718-0764


MILANES, Nathaly; ENSUNCHO, Adolfo E  y  ROBLES, Juana. Synthesis of Dimers from Thermolysis of 1,2-Propanediol . Inf. tecnol. [online]. 2012, vol.23, n.5, pp. 3-12. ISSN 0718-0764.

The dimers 3-oxy-(bys)-2-propanol, 2-(2-hydroxypropoxy)-propanol and 2-oxy-(bys)-propanol were obtained from the thermal decomposition reaction of 1,2-propanediol , at 573.15 K and to its vapor pressure, and using microscale reaction system. The dimers resulted to be isomers and were elucidated by gas chromatography coupled to mass spectrometry. These compounds have not been reported in literature as products polyol thermolysis. The kinetic and the mechanism were validated by computational calculations using the Density Functional Theory, DFT. The proposed mechanism occurred in a single step concerted process that passes through a four member transition cyclical state that is compatible with kinetic and thermodynamic calculations.

Palabras clave : reaction mechanism; thermolysis; dimerization; mass spectrometry; 1,2-propanediol.

        · resumen en Español     · texto en Español     · Español ( pdf )


Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons