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Título: | Thermo- and pH-sensitive hydrogels functionalized with thiol groups |
Autor: | Montero-Rama, M. P.; Liras, Marta CSIC ORCID CVN; García Ballesteros, Olga; Quijada-Garrido, Isabel CSIC ORCID | Palabras clave: | pH-sensitive hydrogels Thiolated polymers Swelling Thermo-sensitive hydrogels |
Fecha de publicación: | 2014 | Editor: | Elsevier | Citación: | European Polymer Journal 63: 37-44 (2014) | Resumen: | Tacking into account the great potential of hydrogels bearing thiol functionalities, in this work we report the synthesis of thiolated hydrogels by free radical polymerization of (i) a thermo-responsive monomer, 2-(2-methoxyethoxy)ethyl methacrylate (MEO2MA); (ii) a lower ratio of a monomer having protected thiol group, 2-(acetylthio)ethyl methacrylate (AcSEMA) and (iii) a small proportion of tetraethylene glycol dimethacrylate (TEGDMA) as crosslinker. Subsequently, deprotection of thioacetate groups, by incubating the samples in basic solutions, allows obtaining hydrogels with free thiol groups. After this treatment, the pH dependence of the thiol-thiolate equilibrium makes the thermal response of novel P(MEO2MA-co-SEMA) strongly modulated by the pH. | URI: | http://hdl.handle.net/10261/111607 | DOI: | 10.1016/j.eurpolymj.2014.11.044 | Identificadores: | doi: 10.1016/j.eurpolymj.2014.11.044 issn: 0014-3057 e-issn: 1873-1945 |
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