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Article dans une revue

ROMP of novel hindered phenol-functionalized norbornenes and preliminary evaluation as stabilizing agents†

Abstract : A series of new norbornene monomers containing sterically hindered phenol groups have been synthesized and polymerized via ring-opening metathesis polymerization (ROMP) using the Grubbs 3rd generation catalyst (G3’). ROMPs exhibit first-order kinetics and molar masses increase linearly with monomer conversion and well-controlled phenol hindered-functionalized polynorbornenes were obtained with a monomer to initiator ratio up to 1 000. The first-order rate constants show that the ROMP activity is closely associated with the norbornene monomer steric congestion. The antioxidant behavior of these hindered phenol-containing polynorbornenes with different para-bridged side groups in polypropylene (PP) was estimated by onset oxidation temperature (OOT) measurements. The ability of these hindered phenol-containing norbornenes to copolymerize by ROMP with dicyclopentadiene (DCPD) was used to bound covalently the antioxidant moiety onto a polydicyclopentadiene (PDCPD) resin whose thermal ageing has been investigated.
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Soumis le : vendredi 5 mars 2021 - 15:40:17
Dernière modification le : vendredi 5 mars 2021 - 16:19:43
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Clémence Nicolas, Jing Huang, Emmanuel Richaud, Wendy Minne, Renata Drozdzak, et al.. ROMP of novel hindered phenol-functionalized norbornenes and preliminary evaluation as stabilizing agents†. Polymer Degradation and Stability, Elsevier, 2021, 186, pp.109522. ⟨10.1016/j.polymdegradstab.2021.109522⟩. ⟨hal-03151150⟩

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