Water-tolerant Catalyst Systems for the Bulk Cationic Polymerization of para-Methylstyrene and Indene - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue European Polymer Journal Année : 2010

Water-tolerant Catalyst Systems for the Bulk Cationic Polymerization of para-Methylstyrene and Indene

Résumé

Water-tolerant catalyst systems have been investigated for the cationic oligomerization of technical-grade p-methylstyrene and indene, for the production of industrially relevant aromatic resins. Systems based on 1-p-tolylethanol and 1-indanol (ROH) as initiators, in association with Cu(OTf)2, Bi(OTf)3 (OTf = triflate) and B(C6F5)3 as co-initiators/catalysts, show interesting productivities at 60 °C under air, with as low as 0.2-1.0 mol% catalyst loading. Most of the reactions are not controlled in terms of molecular weights of the products, except for indene oligomerization by the borane catalyst where experimental Mn values match well the theoretical values, as determined by the amount of added initiator over a 5-fold range (with 2-10 mol% vs. monomer). The ROH/tris(pentafluorophenyl)borane system offers the best compromise in terms of productivity and control over the molecular weights of the oligomers, which can be manipulated by the amount of initiator and reaction temperature.

Domaines

Catalyse

Dates et versions

hal-00497847 , version 1 (06-07-2010)

Identifiants

Citer

Jérôme Vergnaud, Yann Sarazin, Henri Strub, Jean-François Carpentier. Water-tolerant Catalyst Systems for the Bulk Cationic Polymerization of para-Methylstyrene and Indene. European Polymer Journal, 2010, 46 (5), pp.1093-1099. ⟨10.1016/j.eurpolymj.2010.01.014⟩. ⟨hal-00497847⟩
44 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More