Rationalizing the Effect of the MAA/PEGMA Ratio of Comb-Shape Copolymers Synthetized by Aqueous Free-Radical Copolymerization in the Hydration Kinetics of Ordinary Portland Cements
dc.contributor.author | Beldarrain Pavo, Sara | |
dc.contributor.author | Barquero Salaberria, Aitor | |
dc.contributor.author | Goracci, Guido | |
dc.contributor.author | Sánchez Dolado, Jorge | |
dc.contributor.author | Leiza Recondo, José Ramón | |
dc.date.accessioned | 2024-04-29T17:59:11Z | |
dc.date.available | 2024-04-29T17:59:11Z | |
dc.date.issued | 2023-08 | |
dc.identifier.citation | Macromolecular Materials and Engineering 308(8) : (2023) // Article ID 2300032 | es_ES |
dc.identifier.issn | 1439-2054 | |
dc.identifier.issn | 1438-7492 | |
dc.identifier.uri | http://hdl.handle.net/10810/66930 | |
dc.description.abstract | Methacrylic acid-co-poly(ethylene glycol methacrylate) (MAA-co-PEGMA) copolymers (MPEG-type polycarboxylate ether (PCE) superplasticizers) are characterized by a comb-like structure. Although they have been used for years as dispersants in cementitious formulations, their structure–property relationship is still not fully understood. In this work, PCEs with uniform composition and different charge-density (N) or different side chain lengths (P) are synthesized by free-radical copolymerization varying the MAA/PEGMA ratios and ethylene oxide units in the PEGMA macromonomers. The effect of these copolymers on the hydration kinetics of an Ordinary Portland Cement (OPC) is analyzed, and it is observed that by increasing the PCE concentration the hydration is delayed. For a given PCE concentration, the delay is longer as the MAA/PEGMA ratio increases or the side chain length of the PEGMA decreases. The hydration delay is proportional to the carboxylate dosage and all PCEs fit in a master curve proving that the microstructure of the PCEs synthesized by free-radical copolymerization can be correlated with the hydration delay of a commercial OPC. | es_ES |
dc.description.sponsorship | The financial support from Eusko Jaurlaritza (GV-IT-1512-22), Ministerio de Ciencia e Innovación (PID2021-123146OB-I00) and LTC Green Concrete is gratefully acknowledged. Sara Beldarrain thanks the scholarship for master grants of POLYMAT. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Wiley | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/PID2021-123146OB-I00 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | free-radical copolymerization | es_ES |
dc.subject | microstructure | es_ES |
dc.subject | hydration | es_ES |
dc.subject | ordinary portland cement | es_ES |
dc.subject | polycarboxylate ether | es_ES |
dc.title | Rationalizing the Effect of the MAA/PEGMA Ratio of Comb-Shape Copolymers Synthetized by Aqueous Free-Radical Copolymerization in the Hydration Kinetics of Ordinary Portland Cements | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © 2023 The Authors. Macromolecular Materials and Engineering published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. | es_ES |
dc.rights.holder | Atribución 3.0 España | * |
dc.relation.publisherversion | https://onlinelibrary.wiley.com/doi/full/10.1002/mame.202300032 | es_ES |
dc.identifier.doi | 10.1002/mame.202300032 | |
dc.departamentoes | Química aplicada | es_ES |
dc.departamentoeu | Kimika aplikatua | es_ES |
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Except where otherwise noted, this item's license is described as © 2023 The Authors. Macromolecular Materials and Engineering published by Wiley-VCH GmbH.
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.