FN Archimer Export Format PT J TI Enhanced thermo-oxidative stability of polydicyclopentadiene containing covalently bound nitroxide groups BT AF Nicolas, Clémence Huang, Jing Richaud, Emmanuel David, Adelina LE GAC, Pierre Yves Minne, Wendy Drozdzak, Renata Recher, Gilles Fontaine, Laurent Montembault, Véronique AS 1:1;2:2;3:2;4:3;5:3;6:4;7:4;8:4;9:1;10:1; FF 1:;2:;3:;4:PDG-REM-RDT-LCSM;5:PDG-REM-RDT-LCSM;6:;7:;8:;9:;10:; C1 Institut des Molécules et Matériaux du Mans (IMMM), UMR 6283 CNRS – Le Mans Université, Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France Laboratoire PIMM, Arts et Metiers Institute of Technology, CNRS, CNAM, HESAM Université, 151 boulevard de l'Hôpital, F-75013, Paris, France IFREMER, Service Matériaux et Structures, Centre de Brest BP70, F-29280, Plouzané, France TELENE SAS, 2 rue Marie Curie, 59910 Bondues, France C2 UNIV LE MANS, FRANCE CNAM, FRANCE IFREMER, FRANCE TELENE SAS, FRANCE SI BREST SE PDG-REM-RDT-LCSM IN WOS Ifremer UPR copubli-france copubli-univ-france IF 5.9 TC 0 UR https://archimer.ifremer.fr/doc/00733/84455/89490.pdf LA English DT Article DE ;Polydicyclopentadiene;Nitroxide radical-containing norbornene;Ring-opening metathesis polymerization (ROMP);Thermo-oxidative ageing;Mechanical properties AB The antioxidant 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) group was covalently introduced into polydicyclopentadiene (PDCPD) through ring-opening metathesis polymerization (ROMP) copolymerization of dicyclopentadiene (DCPD) with a TEMPO-derived norbornene comonomer. The thermal oxidation of the resulting thin films was monitored by ThermoGravimetric Analyses (TGA) and Fourier-Transform Infra-Red spectroscopy (FT-IR). This new PDCPD stabilized by immobilization of the TEMPO antioxidant shows a better thermo-oxidative stability at 60°C under air than an industrial formulation of PDCPD stabilized with 2,6-di-tert-butyl-4-methylphenol (BHT). Impact of thermal oxidation on mechanical behavior of both formulations have been studied by tensile tests and fracture tests, based on the essential work of fracture (EWF) concept. The TEMPO-functionalized PDCPD offers a promising alternative to BHT-stabilized PDCPD with comparable ductility but slower decay and better cracking resistance, confirming the benefit of the TEMPO antioxidant in PDCPD formulation when chemically bound to the matrix. PY 2022 PD JAN SO Polymer Degradation And Stability SN 0141-3910 PU Elsevier BV VL 195 UT 000724164600001 DI 10.1016/j.polymdegradstab.2021.109765 ID 84455 ER EF