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Título: | Molecular weight dependence and stereoselective chain cleavage during the early stages of the isotactic polypropylene pyrolysis |
Autor: | Martínez Rodríguez, María del Carmen CSIC ORCID; Benavente, Rosario CSIC ORCID; Gómez-Elvira González, José Manuel CSIC ORCID | Palabras clave: | Pyrolysis Polypropylene Chain microstructure NMR characterization |
Fecha de publicación: | jun-2017 | Editor: | Elsevier | Citación: | Polymer Degradation and Stability 143 : 26-34 (2017) | Resumen: | The comparative study on the pyrolysis of two Polypropylene samples, with a similar high isotactic character but quite distinct molecular weights, reveals a significant difference in their thermal performances. The detailed qualitative analysis of the parameters, which are expected to govern the thermal degradation, leads to reasonably assume a main role of the molecular weight in their relative early stabilities. Furthermore, the correlation found between the sharp initial build-up of the Eact and the selective cleavage of isotactic stereosequences in both samples, suggests the relevance of the stereoregular length into the energy required for chain scission | Versión del editor: | http://dx.doi.org/10.1016/j.polymdegradstab.2017.06.011 | URI: | http://hdl.handle.net/10261/155243 | DOI: | 10.1016/j.polymdegradstab.2017.06.011 | ISSN: | 0141-3910 | E-ISSN: | 1873-2321 |
Aparece en las colecciones: | (ICTP) Artículos |
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Manuscript_JMGE.pdf | 973,67 kB | Adobe PDF | Visualizar/Abrir |
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