AUTHOR=Gómez-Patiño Mayra Beatriz , Gutiérrez-Salgado Diana Yaremy , García-Hernández Edgar , Mendez-Mendez Juan Vicente , Andraca Adame J. Alberto , Campos-Terán José , Arrieta-Baez Daniel 

TITLE=Polymerization of 10,16-Dihydroxyhexadecanoic Acid, Main Monomer of Tomato Cuticle, Using the Lewis Acidic Ionic Liquid Choline Chloride·2ZnCl2

JOURNAL=Frontiers in Materials

VOLUME=Volume 2 - 2015

YEAR=2015

URL=https://www.frontiersin.org/journals/materials/articles/10.3389/fmats.2015.00067

DOI=10.3389/fmats.2015.00067

ISSN=2296-8016

ABSTRACT=10,16-dihydroxyhexadecanoic acid, main monomer of the tomato cuticle obtained from agro-residual wastes, was polymerized using (choline chloride.2ZnCl2) ionic liquid as catalyst at three different temperatures (80, 90 and 100 °C). The resulting polyesters obtained under these conditions were insoluble in most of the organic solvents and showed different physicochemical properties. While at 80 °C polymers were obtained as powder, at higher temperature they were found in viscous consistency. According with the CP MAS 13C NMR and FTIR-ATR analysis, polymers showed a linear structure with an increasing degree of esterification in position C-10. Polyesters were analyzed by means of differential scanning calorimetry (DSC), atomic force microscopy (AFM) and X ray diffraction (small- and wide-angle scattering, SWAXS) techniques.