Please use this identifier to cite or link to this item: http://cicy.repositorioinstitucional.mx/jspui/handle/1003/2841
Preparation and characterization of strongly sulfonated acid block and random copolymer membranes for acetic acid esterification with 2-Propanol
Verónica Rosiles González
Ronan Le Lagadec
ARELLY PAULINA VARGUEZ CATZIM
María Isabel de los Dolores Loría Bastarrachea
Abigail Gonzalez Diaz
EMANUEL HERNANDEZ NUÑEZ
Manuel de Jesús Aguilar Vega
MARIA ORTENCIA GONZALEZ DIAZ
Acceso Abierto
Atribución-NoComercial-SinDerivadas
https://doi.org/10.3390/polym14132595
BLOCK COPOLYMERS
RANDOM COPOLYMERS
CATALYTIC MEMBRANES
ESTERIFICATION
ISOPROPYL ACETATE
In this paper, we report the synthesis of block and random copolymers of 2-acrylamido-2-methyl-1-propane sulfonic acid (AMPS) and methyl methacrylate (MMA), with different AMPS feed ratios. These solution-processable copolymers with strongly sulfonated acid groups resulted in membranes with tunable ion exchange (IEC) and water absorption capacities. AFM images confirmed the microphase separation of PAMPS-b-PMMA-1:1 block copolymer membrane, annealed under the appropriate conditions. The resulting copolymers from the random combination of a 1:1 molar ratio of AMPS and MMA monomers are effective at enhancing the esterification conversion of acetic acid, when compared with a reaction catalyzed by PAMPS-b-PMMA block copolymers and the previously studied catalytic membranes. With the PAMPS-co-PMMA-1:1 membrane, the esterification reaction using acetic acid achieved 85% isopropyl acetate. These results are closely correlated with the increase in IEC (2.63 mmol H+ g−1 ) and the relationship between weight loss (20.3%) and swelling degree (68%) in 2-propanol. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
2022
Artículo
Polymers, 14(13), 2595, 2022.
Inglés
Rosiles-González, V.; Le Lagadec, R.; Varguez-Catzim, P.; Loria-Bastarrachea, M.I.; González-Díaz, A.; Hernández-Núñez, E.; Aguilar-Vega, M.; González-Díaz, M.O. Preparation and characterization of strongly sulfonated acid block and random copolymer membranes for acetic acid esterification with 2-Propanol. Polymers 2022, 14, 2595. https://doi.org/10.3390/polym14132595
PROPIEDADES DE LOS MATERIALES
Versión publicada
publishedVersion - Versión publicada
Appears in Collections:Artículos de Investigación Arbitrados

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