Physicochemical Properties and Proposed Mechanism in the Obtainment of 4-Hidroxycoumarin Conjugated Polymers Using MALDI-T of Analysis

H. A. GARRO; G. PETROSELLI; R. ERRA-BALSELLS; J. MORILLAS; C. R. PUNGITORE; E. F. BRUNA-HAUPT; C. E. TONN

Journal of Engineering Research and Applications

IJERA

Año: 2016 vol. 6 p. 84 - 89

The mechanism for the poly-condensation event of conjugated polymers with ending 4-hydroxycoumarin has been proposed. It happened under H2SO4 acidic conditions only using enolic-coumarins without any substituent at third position. It was studied using Matrix assisted laser desorption/ionization time-of-flight (MALDI-Tof) mass spectrometry. Besides, some physicochemical properties were analyzed using Thermo-gravimetric (TGA), X-ray and UV-Vis analysis