FN Archimer Export Format
PT J
TI Hydrolytic degradation of biodegradable poly(butylene adipate-co-terephthalate) (PBAT) - Towards an understanding of microplastics fragmentation
BT 
AF Deshoulles, Quentin
   LE GALL, Maelenn
   Benali, S.
   Raquez, J-M.
   Dreanno, Catherine
   Arhant, Mael
   Priour, Daniel
   Cerantola, S.
   Stoclet, G.
   LE GAC, Pierre Yves
AS 1:1,2,3;2:1;3:2;4:2;5:3;6:1;7:1;8:4;9:5;10:1;
FF 1:PDG-REM-RDT-LCSM;2:PDG-REM-RDT-LCSM;3:;4:;5:PDG-REM-RDT-LDCM;6:PDG-REM-RDT-LCSM;7:PDG-REM-RDT-LCSM;8:;9:;10:PDG-REM-RDT-LCSM;
C1 Laboratoire Comportement des Structures en Mer, Ifremer, Centre de Bretagne, 29280 Plouzané, France
   Laboratory of Polymeric and Composite Materials (LPCM), Center of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons, Place du Parc 23, B-7000 Mons, Belgium
   Laboratoire Détection Capteurs et Mesures, Ifremer, Centre de Bretagne, 29280 Plouzané, France
   Plateforme RMN-RPE, Service Général des Plateformes, Université de Bretagne Occidentale, 6 av. le Gorgeu, CS93837, 29238, Brest cedex 3, France
   Univ. Lille, CNRS, INRAE, Centrale Lille, UMR 8207 - UMET - Unité Matériaux et Transformations, F-59000 Lille, France
C2 IFREMER, FRANCE
   UNIV MONS, BELGIUM
   IFREMER, FRANCE
   UBO, FRANCE
   UNIV LILLE, FRANCE
SI BREST
SE PDG-REM-RDT-LCSM
   PDG-REM-RDT-LDCM
IN WOS Ifremer UPR
   copubli-france
   copubli-europe
   copubli-univ-france
IF 5.9
TC 17
UR https://archimer.ifremer.fr/doc/00791/90276/95794.pdf
LA English
DT Article
DE ;Hydrolysis;PBAT;Molar mass;Embrittlement;Biodegradable;Microplastics
AB The long-term behaviour of PBAT subjected to hydrolytic ageing is investigated in this paper. Samples were aged in water at several temperatures ranging from 80 to 100°C for different durations. Changes in physico-chemical properties were investigated through NMR, GPC, DSC and X-Ray analyses and embrittlement was assessed by tensile tests. It is demonstrated that hydrolysis of PBAT occurs first on the ester group located between the terephthalate and adipate groups leading to a decrease in molar mass. For longer ageing durations, the ester situated within the adipate group undergoes hydrolysis. An increase in crystallinity ratio and a decrease in amorphous layer thickness was observed as consequences of the chain scission process. Finally, a clear change in mechanical behaviour is noted; for the early stages of ageing, the polymer exhibits a ductile behaviour while for longer ageing durations, the polymer is brittle due to a lack of chain entanglement. This transition takes place once the molar mass of PBAT falls below 11 kg/mol, i.e. when a critical molar mass M’c is reached. 
PY 2022
PD NOV
SO Polymer Degradation And Stability
SN 0141-3910
PU Elsevier BV
VL 205
UT 000862195600001
DI 10.1016/j.polymdegradstab.2022.110122
ID 90276
ER

EF