Title
Preparation and characterization of strongly sulfonated acid block and random copolymer membranes for acetic acid esterification with 2-Propanol
Author
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
Access level
Open Access
Dataset reference
datasetDOI/https://doi.org/10.3390/polym14132595
Subjects
BLOCK COPOLYMERS - (AUTORES) RANDOM COPOLYMERS - (AUTORES) CATALYTIC MEMBRANES - (AUTORES) ESTERIFICATION - (AUTORES) ISOPROPYL ACETATE - (AUTORES) INGENIERÍA Y TECNOLOGÍA - (CTI) CIENCIAS TECNOLÓGICAS - (CTI) TECNOLOGÍA DE MATERIALES - (CTI) PROPIEDADES DE LOS MATERIALES - (CTI) PROPIEDADES DE LOS MATERIALES - (CTI)
Summary or description
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.
Publish date
2022
Publication type
Article
Publication version
Published Version
Information Resource
Format
application/pdf
Source
Polymers, 14(13), 2595, 2022.
Language
English
Citation suggestion
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
Source repository
Repositorio Institucional CICY
Downloads
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