Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/103712
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Effect of high molar mass species on linear viscoelastic properties of polyethylene melts |
Autor: | Otegui, Jon CSIC; Ramos, Javier CSIC ORCID ; Vega, Juan Francisco CSIC ORCID; Martínez-Salazar, Javier CSIC ORCID | Fecha de publicación: | 2013 | Editor: | Pergamon Press | Citación: | European Polymer Journal 49: 2748- 2758 (2013) | Resumen: | The molecular features and the linear viscoelastic melt properties of a series of polydisperse high density polyethylene are investigated. The main molecular characteristic of the materials studied is the presence of high molar mass species, which give rise to unusual values of the Mz/M w ratio. This molecular particularity strongly affects to the linear viscoelastic melt properties as the Newtonian viscosity and the steady-state shear recoverable compliance. Both the third and the fourth moments of the molecular weight distribution affect to the values of these properties, which follow the trend expected by the reptation model. The evidences clearly prove the effect not only of the polydispersity index, but more interestingly of the shape of the molecular weight distribution on the dynamics of the systems. The behavior shown by the experimental samples studied in this work is interesting as the linear viscoelastic properties have become widely used, not only to test the molecular weight distribution dependence of the viscoelastic fingerprint and the processability, but also to assess the possible presence of long chain branching. © 2013 Elsevier Ltd. All rights reserved. | URI: | http://hdl.handle.net/10261/103712 | DOI: | 10.1016/j.eurpolymj.2013.06.015 | Identificadores: | doi: 10.1016/j.eurpolymj.2013.06.015 issn: 0014-3057 |
Aparece en las colecciones: | (CFMAC-IEM) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
9
checked on 11-abr-2024
WEB OF SCIENCETM
Citations
8
checked on 28-feb-2024
Page view(s)
377
checked on 21-abr-2024
Download(s)
123
checked on 21-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.