• français
    • English
    français
  • Login
Help
View Item 
  •   Home
  • Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM)
  • View Item
  • Home
  • Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Polyethylene loss of ductility during oxidation: Effect of initial molar mass distribution

Article dans une revue avec comité de lecture
Author
REANO, Armando F.
GUINAULT, Alain
ccFAYOLLE, Bruno
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
ccRICHAUD, Emmanuel

URI
http://hdl.handle.net/10985/12795
DOI
10.1016/j.polymdegradstab.2018.01.021
Date
2018
Journal
Polymer Degradation and Stability

Abstract

This paper reports a study of thermal oxidation induced embrittlement in several polyethylene grades differing mainly by the broadness of the molar mass distribution (ranging for lower than 3 to more than 30). Thermal oxidation was monitored at macromolecular scale (Gel Permeation Chromatography, Differential Scanning Calorimetry) and macroscopic scale (tensile tests). As expected, the samples undergo predominant chain scission and plastic deformation is suppressed below a critical molar mass value (M’C). Even though this latter was previously reported to be independent of the initial weight average molar mass, it is shown here that it depends on initial polydispersity index. Samples were also shown to undergo chemicrystallization, i.e. that segments released by chain scissions migrate into the crystalline phase with a yield increasing with initial polydispersity index. Finally, the main novelty of this work is to evidence that the previously proposed end-of-life criteria at macromolecular level linked to loss of ductility (critical molar mass, crystallization yield) depend on the initial polydispersity index.

Files in this item

Name:
PIMM- PDS-ARMANDO-2018.pdf
Size:
888.0Kb
Format:
PDF
Embargoed until:
2018-07-01
View/Open

Collections

  • Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM)

Related items

Showing items related by title, author, creator and subject.

  • New insights in polymer-biofuels interaction Avancées dans la compréhension des interactions polymères-biocarburants 
    Article dans une revue avec comité de lecture
    DJOUANI, Fatma; VERDU, Jacques; FLACONNECHE, Bruno; ccFAYOLLE, Bruno; ccRICHAUD, Emmanuel (Institut Français du Pétrole, 2015)
    This paper deals with polymer-fuel interaction focusing on specific effects of biofuels on polyethylene (PE) in automotive applications. The practical objective is to develop a predictable approach for durability of ...
  • Polypropylene stabilization by hindered phenols – Kinetic aspects 
    Article dans une revue avec comité de lecture
    VERDU, Jacques; ccFAYOLLE, Bruno; ccRICHAUD, Emmanuel (Elsevier, 2011)
    This article deals with polypropylene stabilization by hindered 2,6-di-tert-butylphenols. Two aspects are mainly considered: the influence of stabilizer structure, of its concentration and temperature on induction period ...
  • Review : Auto-oxidation of aliphatic polyamides 
    Article dans une revue avec comité de lecture
    OKAMBA-DIOGO, Octavie; VERDU, Jacques; GUILMENT, Jean; FERNAGUT, François; ccFAYOLLE, Bruno; ccRICHAUD, Emmanuel (Elsevier, 2013)
    The literature on oxidation kinetics of polyamides and model compounds has been reviewed in order to try to extract suitable information for non-empirical kinetic modeling. Polyamide characteristics are systematically ...
  • The Role of Oxidation Compounds in Biofilm Growth on Polyethylene Geomembrane Barriers Used in Landfill 
    Article dans une revue avec comité de lecture
    PONS, C; BOUCHEZ, T; MAZEAS, L; FARCAS, F; ccFAYOLLE, Bruno; ccRICHAUD, Emmanuel (Wiley, 2012)
    In a model study, polyethylene was preoxidized and incubated for a period of 7 months at 40°C in two different municipal solid waste leachates. During the postexperimental analyses, specific attention was paid to the ...
  • Molecular and macromolecular structure changes in polyamide 11 during thermal oxidation - Kinetic modeling 
    Article dans une revue avec comité de lecture
    OKAMBA-DIOGO, Octavie; VERDU, Jacques; FERNAGUT, François; GUILMENT, Jean; ccFAYOLLE, Bruno; ccRICHAUD, Emmanuel (Elsevier, 2015)
    The oxidation kinetics of unstabilized polyamide 11 thin film under oxygen pressures up to 2.0 MPa was studied by means of ferrous ion method for hydroperoxides titration, size exclusion chromatography (SEC) for molar weight ...

Browse

All SAMCommunities & CollectionsAuthorsIssue DateCenter / InstitutionThis CollectionAuthorsIssue DateCenter / Institution

Newsletter

Latest newsletterPrevious newsletters

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales