{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,9]],"date-time":"2026-07-09T11:52:32Z","timestamp":1783597952733,"version":"3.55.0"},"reference-count":47,"publisher":"MDPI AG","issue":"13","license":[{"start":{"date-parts":[[2022,6,27]],"date-time":"2022-06-27T00:00:00Z","timestamp":1656288000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"CONACYT M\u00e9xico","award":["286973"],"award-info":[{"award-number":["286973"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Polymers"],"abstract":"<jats:p>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\u22121) and the relationship between weight loss (20.3%) and swelling degree (68%) in 2-propanol.<\/jats:p>","DOI":"10.3390\/polym14132595","type":"journal-article","created":{"date-parts":[[2022,6,26]],"date-time":"2022-06-26T22:50:23Z","timestamp":1656283823000},"page":"2595","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Preparation and Characterization of Strongly Sulfonated Acid Block and Random Copolymer Membranes for Acetic Acid Esterification with 2-Propanol"],"prefix":"10.3390","volume":"14","author":[{"given":"Ver\u00f3nica","family":"Rosiles-Gonz\u00e1lez","sequence":"first","affiliation":[{"name":"Laboratorio de Membranas, Unidad de Materiales, Centro de Investigaci\u00f3n Cient\u00edfica de Yucat\u00e1n, A.C., Calle 43 No. 130, Chuburn\u00e1 de Hidalgo, M\u00e9rida 97205, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5679-2081","authenticated-orcid":false,"given":"Ronan","family":"Le Lagadec","sequence":"additional","affiliation":[{"name":"Instituto de Qu\u00edmica, Universidad Nacional Aut\u00f3noma de M\u00e9xico, Circuito Exterior s\/n, Ciudad Universitaria, Ciudad de M\u00e9xico 04510, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paulina","family":"Varguez-Catzim","sequence":"additional","affiliation":[{"name":"Laboratorio de Membranas, Unidad de Materiales, Centro de Investigaci\u00f3n Cient\u00edfica de Yucat\u00e1n, A.C., Calle 43 No. 130, Chuburn\u00e1 de Hidalgo, M\u00e9rida 97205, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mar\u00eda I.","family":"Loria-Bastarrachea","sequence":"additional","affiliation":[{"name":"Laboratorio de Membranas, Unidad de Materiales, Centro de Investigaci\u00f3n Cient\u00edfica de Yucat\u00e1n, A.C., Calle 43 No. 130, Chuburn\u00e1 de Hidalgo, M\u00e9rida 97205, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4661-8124","authenticated-orcid":false,"given":"Abigail","family":"Gonz\u00e1lez-D\u00edaz","sequence":"additional","affiliation":[{"name":"Instituto Nacional de Electricidad y Energ\u00edas Limpias, Reforma 113, Col. Palmira, Cuernavaca 62490, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7467-7538","authenticated-orcid":false,"given":"Emanuel","family":"Hern\u00e1ndez-N\u00fa\u00f1ez","sequence":"additional","affiliation":[{"name":"Centro de Investigaci\u00f3n y de Estudios Avanzados del IPN, Unidad M\u00e9rida, M\u00e9rida 97310, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Manuel","family":"Aguilar-Vega","sequence":"additional","affiliation":[{"name":"Laboratorio de Membranas, Unidad de Materiales, Centro de Investigaci\u00f3n Cient\u00edfica de Yucat\u00e1n, A.C., Calle 43 No. 130, Chuburn\u00e1 de Hidalgo, M\u00e9rida 97205, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mar\u00eda Ortencia","family":"Gonz\u00e1lez-D\u00edaz","sequence":"additional","affiliation":[{"name":"CONACYT\u2014Centro de Investigaci\u00f3n Cient\u00edfica de Yucat\u00e1n, A.C., Calle 43 No. 130, Chuburn\u00e1 de Hidalgo, M\u00e9rida 97205, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,6,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"5322","DOI":"10.1021\/acs.chemmater.8b02102","article-title":"Highly selective and permeable microporous polymer membranes for hydrogen purification and CO2 removal from natural gas","volume":"30","author":"Luo","year":"2018","journal-title":"Chem. 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