Activity Enhancement of MgCl2-supported Ziegler-Natta Catalysts by Lewis-acid Pre-treatment for Ethylene Polymerization - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Chinese Journal of Polymer Science Année : 2019

Activity Enhancement of MgCl2-supported Ziegler-Natta Catalysts by Lewis-acid Pre-treatment for Ethylene Polymerization

Résumé

Ziegler-Natta precatalysts were synthetized from Lewis-base-modified-MgCl2 supports and treated by various Lewis acids, prior to activation by triethylaluminum, in order to increase their activity in ethylene polymerization. BCl3 provided the highest increase in activity. Interestingly, polymerization results showed no substantial modification of polymer properties, which is consistent with the Lewis acid only promoting the creation of new active sites, after activation by TEA, possessing very similar features than the original ones achievable with conventional precatalysts (i.e. without Lewis-acid treatment).
Fichier principal
Vignette du fichier
Humbert et all Article CJPS - revised manuscript HAL.pdf (1022.81 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-02391917 , version 1 (20-11-2020)

Identifiants

Citer

Matthieu Humbert, Sébastien Norsic, Jean Raynaud, Vincent Monteil. Activity Enhancement of MgCl2-supported Ziegler-Natta Catalysts by Lewis-acid Pre-treatment for Ethylene Polymerization. Chinese Journal of Polymer Science, 2019, 37 (10), pp.1031-1038. ⟨10.1007/s10118-019-2335-8⟩. ⟨hal-02391917⟩
28 Consultations
228 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More