Artículo
Rivas, M.V.; Petroselli, G.; Erra-Balsells, R.; Varela, O.; Kolender, A.A. "Synthesis, characterization and chemical degradation of poly(ester-triazole)s derived from d-galactose" (2019) RSC Advances. 9(17):9860-9869
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Abstract:
α-Azide-ω-alkynyl ester monomers were designed and synthesized in order to obtain hydrolytically degradable polymers. The monomers were prepared from d-galactose, as a renewable resource. Environmentally benign azido-alkyne cycloaddition polymerizations were conducted to afford poly(ester-triazole)s, with complete atom economy. Although polymer formation prevailed under optimized polymerization conditions, variable proportions of cyclic oligomer byproducts were detected. The Cu-catalyzed click polymerization led regioselectively to 1,4-disubstituted triazole linkages, while the thermal, metal-free polymerization produced a random distribution of 1,4- and 1,5-disubstituted triazoles in the polymer backbone. The poly(ester-triazole)s exhibited high molecular weights (M w in the range 35-85 kDa). They were soluble in organic solvents but highly insoluble in water, thus removal of the Cu(i) catalyst was simplified. The polymers were stable up to 300 °C, and had T g values in the range 90-100 °C. The materials were hydrolysed under either basic or strong acid conditions, and the degradation products have been characterized. © The Royal Society of Chemistry.
Registro:
| Documento: | Artículo |
| Título: | Synthesis, characterization and chemical degradation of poly(ester-triazole)s derived from d-galactose |
| Autor: | Rivas, M.V.; Petroselli, G.; Erra-Balsells, R.; Varela, O.; Kolender, A.A. |
| Filiación: | Universidad de Buenos Aires, Facultad Ciencias Exactas y Naturales, Departamento de Química Orgánica, Ciudad Universitaria, Pab. 2, Buenos Aires, C1428EHA, Argentina Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), UBA Centro de Investigación en Hidratos de Carbono (CIHIDECAR), Argentina |
| Palabras clave: | Copper compounds; Degradation; Monomers; Polymerization; Chemical degradation; Cycloaddition polymerization; Degradable polymers; Degradation products; Environmentally benign; High molecular weight; Polymerization conditions; Random distribution; Esters |
| Año: | 2019 |
| Volumen: | 9 |
| Número: | 17 |
| Página de inicio: | 9860 |
| Página de fin: | 9869 |
| DOI: | http://dx.doi.org/10.1039/C9RA00398C |
| Título revista: | RSC Advances |
| Título revista abreviado: | RSC Adv. |
| ISSN: | 20462069 |
| CODEN: | RSCAC |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20462069_v9_n17_p9860_Rivas |
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Citas:
---------- APA ----------
Rivas, M.V., Petroselli, G., Erra-Balsells, R., Varela, O. & Kolender, A.A. (2019) . Synthesis, characterization and chemical degradation of poly(ester-triazole)s derived from d-galactose. RSC Advances, 9(17), 9860-9869.http://dx.doi.org/10.1039/C9RA00398C
---------- CHICAGO ----------
Rivas, M.V., Petroselli, G., Erra-Balsells, R., Varela, O., Kolender, A.A. "Synthesis, characterization and chemical degradation of poly(ester-triazole)s derived from d-galactose" . RSC Advances 9, no. 17 (2019) : 9860-9869.http://dx.doi.org/10.1039/C9RA00398C
---------- MLA ----------
Rivas, M.V., Petroselli, G., Erra-Balsells, R., Varela, O., Kolender, A.A. "Synthesis, characterization and chemical degradation of poly(ester-triazole)s derived from d-galactose" . RSC Advances, vol. 9, no. 17, 2019, pp. 9860-9869.http://dx.doi.org/10.1039/C9RA00398C
---------- VANCOUVER ----------
Rivas, M.V., Petroselli, G., Erra-Balsells, R., Varela, O., Kolender, A.A. Synthesis, characterization and chemical degradation of poly(ester-triazole)s derived from d-galactose. RSC Adv. 2019;9(17):9860-9869.http://dx.doi.org/10.1039/C9RA00398C
