• 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.

Review : Auto-oxidation of aliphatic polyamides

Article dans une revue avec comité de lecture
Author
OKAMBA-DIOGO, Octavie
238410 Arkema
VERDU, Jacques
14421 Laboratoire d'Ingénierie des Matériaux [LIM]
GUILMENT, Jean
238410 Arkema
FERNAGUT, François
238410 Arkema
ccFAYOLLE, Bruno
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
ccRICHAUD, Emmanuel

URI
http://hdl.handle.net/10985/8154
DOI
10.1016/j.polymdegradstab.2013.04.012
Date
2013
Journal
Polymer Degradation and Stability

Abstract

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 compared to polyolefin ones, these latter being more extensively studied. From kinetic analysis point of view, it is shown that oxidation attacks predominantly a amino methylenes of which C eH bond is considerably weaker than the other methylenes. As a result, propagation by H abstraction is considerably faster in polyamides than in polyethylene for instance. Termination by radical combination is also very fast. Another cause of PA oxidizability is the instability of a amino hydroperoxides linked to the inductive effect of nitrogen. This instability is responsible for many key features of oxidation kinetics especially the absence of induction period. The main stable oxidation products are imides resulting from disproportionation processes meanwhile chain scissions resulting from rearrangements of a amino alkyls by b-scission are also significant process although their yield appears lower than in polyolefins.

Files in this item

Name:
PIMM-PDS-RICHAUD2-2013.pdf
Size:
1.709Mb
Format:
PDF
View/Open

Collections

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

Related items

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

  • 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 ...
  • 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