English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/102534
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

Local mechanical and dielectric behavior of the interacting polymer layer in silica nano-particles filled SBR by means of AFM-based methods

AuthorsKummali, Mohammed M.; Miccio, Luis A.; Schwartz, G. A. ; Alegría, Ángel ; Colmenero de León, Juan ; Otegui, Jon; Petzold, Albrecht; Westermann, Stephan
KeywordsDielectric spectroscopy
AFM
SBR
Issue Date2013
PublisherElsevier
CitationPolymer 54(18): 4980-4986 (2013)
AbstractFiller-polymer interactions in reinforced rubbers are mainly governed by a thin layer of polymer around the filler particles. The dynamics of this layer has long been a matter of intense investigation. Some researchers suggest that this >interacting layer> is immobilized and possesses slower dynamics compared to the bulk, whereas some others consider it equally mobile. In this work, we address this problem by studying the macroscopic characteristics of reinforced rubber using Broadband Dielectric Spectroscopy (BDS) and by measuring its local dielectric behavior using a new AFM based approach: nano-dielectric spectroscopy. This new approach enables us to study the dielectric response of the interacting polymer layer and the bulk dynamics locally, with a spatial resolution of about 20-30 nm. The total amount of interacting polymer within the compounds was also obtained by analyzing the local mechanical properties. Both macro- and nano-measurements show no differences in the polymer local dynamics for the compounds here analyzed. We propose that, for our particular system, the interacting polymer layer shares the same local relaxation dynamics with the bulk rubber due to the presence of a flexible link between the polymer chains and the nanoparticles. © 2013 Elsevier Ltd. All rights reserved.
URIhttp://hdl.handle.net/10261/102534
DOI10.1016/j.polymer.2013.07.032
Identifiersdoi: 10.1016/j.polymer.2013.07.032
issn: 0032-3861
Appears in Collections:(CFM) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
View/Open
Show full item record
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.