FN Archimer Export Format
PT J
TI Modelling pure polyamide 6 hydrolysis: influence of water content in the amorphous phase
BT 
AF Deshoulles, Quentin
   LE GALL, Maelenn
   Dreanno, Catherine
   Arhant, Mael
   Priour, Daniel
   LE GAC, Pierre Yves
AS 1:1,2;2:1;3:2;4:1;5:1;6:1;
FF 1:PDG-REM-RDT-LCSM;2:PDG-REM-RDT-LCSM;3:PDG-REM-RDT-LDCM;4:PDG-REM-RDT-LCSM;5:PDG-REM-RDT-LCSM;6:PDG-REM-RDT-LCSM;
C1 Laboratoire Comportement des Structures en Mer, Ifremer, Centre de Bretagne, 29280 Plouzané, France
   Laboratoire Détection, Capteurs et Mesures, Ifremer, Centre de Bretagne, 29280 Plouzané, France
C2 IFREMER, FRANCE
   IFREMER, FRANCE
SI BREST
SE PDG-REM-RDT-LCSM
   PDG-REM-RDT-LDCM
IN WOS Ifremer UPR
IF 5.204
TC 20
UR https://archimer.ifremer.fr/doc/00659/77144/78469.pdf
LA English
DT Article
DE ;Polyamide 6;Hydrolysis;Modelling;Mass Loss;Microplastic
AB An extensive experimental study of pure hydrolysis (without oxygen) in polyamide 6 is presented in this paper. 250 micron thick film samples were immersed in pure deoxygenated water at 5 ageing temperatures for almost 2 years. Hydrolysis leads to chain scission, an increase in crystallinity and more surprisingly in a large rise in water content. A new kinetic model considering this water content increase is proposed. The modelled data are confronted with experimental values. It is mandatory to consider this increase in water content in order to be able to predict chain scission at a high level of degradation. It appears that in the absence of oxygen, hydrolysis in polyamide 6 is a slow process when the pH is neutral (7 pH) and obeys an Arrhenius law with an activation energy of 106 kJ/mol. This new model can be used to predict the leaching of macromolecules from the polymer to external water that is of great interest in the framework of ocean pollution by microplastics. 
PY 2021
PD JAN
SO Polymer Degradation And Stability
SN 0141-3910
PU Elsevier BV
VL 183
UT 000614146200031
DI 10.1016/j.polymdegradstab.2020.109435
ID 77144
ER

EF