• 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.

Molecular and macromolecular structure changes in polyamide 11 during thermal oxidation - Kinetic modeling

Article dans une revue avec comité de lecture
Author
OKAMBA-DIOGO, Octavie
VERDU, Jacques
FERNAGUT, François
GUILMENT, Jean
238410 Arkema
ccFAYOLLE, Bruno
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
ccRICHAUD, Emmanuel

URI
http://hdl.handle.net/10985/9756
DOI
10.1016/j.polymdegradstab.2014.05.028
Date
2015
Journal
Polymer Degradation and Stability

Abstract

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 measurements and in situ FTIR monitoring for carbonyl build up. Oxidation was shown not to be limited by oxygen diffusion which militates in favor of the use of a simple kinetic model for simulating experimental data. The kinetic parameters of this model were estimated from literature for initiation and propagation, and from selective experiments such as aging under several oxygen pressures for the estimation of the termination rate constants, or exposures under inert atmosphere to investigate the solid state polymerization effects and tentatively check the boundary conditions of the model. The kinetic model simulates satisfyingly the overall experimental results using the minimal number of adjustable parameters (except for some reactions difficult to be experimentally isolated and studied).

Files in this item

Name:
PIMM-PDS-OKAMBA-2015.pdf
Size:
1.051Mb
Format:
PDF
Embargoed until:
2017-07-10
View/Open

Collections

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

Related items

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

  • 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 ...
  • Quantification of hindered phenols in polyamide 11 during thermal aging 
    Article dans une revue avec comité de lecture
    OKAMBA-DIOGO, Octavie; VERDU, Jacques; FERNAGUT, François; GUILMENT, Jean; PERY, Frédérique; ccFAYOLLE, Bruno; ccRICHAUD, Emmanuel (Elsevier, 2016)
    Polyamide 11 films stabilized by Irganox® 1098, Irganox® 1010 or Irganox® 245 were subjected to thermal oxidation at 110°C. The residual phenol content was assessed by comparing three analytical methods:high performance ...
  • Investigation of polyamide 11 embrittlement during oxidative degradation 
    Article dans une revue avec comité de lecture
    OKAMBA-DIOGO, Octavie; VERDU, Jacques; FERNAGUT, François; GUILMENT, Jean; ccFAYOLLE, Bruno; ccRICHAUD, Emmanuel (Elsevier, 2016)
    Embrittlement processes occurring during thermal oxidation are investigated for stabilized and unstabilized polyamide 11 samples differing by their thicknesses and initial molar masses. Tensile tests were carried out in ...
  • Molecular and macromolecular structure changes in polyamide 11 during thermal oxidation 
    Article dans une revue avec comité de lecture
    OKAMBA-DIOGO, Octavie; VERDU, Jacques; FERNAGUT, François; GUILMENT, Jean; ccFAYOLLE, Bruno; ccRICHAUD, Emmanuel (Elsevier, 2014)
    The present article reports a study of thermal oxidation of unstabilized polyamide 11 films at several temperatures (90–165 °C) under atmospheric pressure and under various oxygen pressures (up to 1.6 MPa) at 110 °C. The ...
  • Thermal stabilization of polyamide 11 by phenolic antioxidants 
    Article dans une revue avec comité de lecture
    OKAMBA-DIOGO, Octavie; FERNAGUT, François; GUILMENT, Jean; PERY, Frederique; ccFAYOLLE, Bruno; ccRICHAUD, Emmanuel (Elsevier, 2020)
    This paper addresses the effect of hindered phenols (mainly Irganox 1098 with a few comparisons with other phenolic antioxidants) on the stabilization of polyamide 11 aged at several temperatures (90–165 °C). The effect ...

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