A variety of branched polyethylenes, spanning from semicrystalline LLDPE to completely amorphous, rubbery PE, was obtained from ethylene by homogeneous tandem catalysis using combinations of CoCl2(N2 BT) (1) (N2BT =[1-(6-benzo[b]thiophen-2-yl-pyridin-2-yl)-ethylidlene)-( 2,6-diisopropyl-phenyl)-amine) and [(Z5-C5Me4)- SiMe2(tBuN)]TiCl2 (2) in the presence of MAO at 30 8C. The productivity reached a maximum of 4 570 kg PE (mol Ti h) 1 at chi = 0.50, yielding a rubbery material with d25 = 0.868 g cm 3 and Tg = 55 8C.

Amorphous polyethylene by tandem action of cobalt and titanium single-site catalysts / Bianchini C; Frediani M; Giambastiani G; Kaminsky W; Meli A; Passaglia E. - In: MACROMOLECULAR RAPID COMMUNICATIONS. - ISSN 1022-1336. - STAMPA. - 26:(2005), pp. 1218-1223. [10.1002/marc.200500243]

Amorphous polyethylene by tandem action of cobalt and titanium single-site catalysts

Giambastiani G;
2005

Abstract

A variety of branched polyethylenes, spanning from semicrystalline LLDPE to completely amorphous, rubbery PE, was obtained from ethylene by homogeneous tandem catalysis using combinations of CoCl2(N2 BT) (1) (N2BT =[1-(6-benzo[b]thiophen-2-yl-pyridin-2-yl)-ethylidlene)-( 2,6-diisopropyl-phenyl)-amine) and [(Z5-C5Me4)- SiMe2(tBuN)]TiCl2 (2) in the presence of MAO at 30 8C. The productivity reached a maximum of 4 570 kg PE (mol Ti h) 1 at chi = 0.50, yielding a rubbery material with d25 = 0.868 g cm 3 and Tg = 55 8C.
2005
26
1218
1223
Bianchini C; Frediani M; Giambastiani G; Kaminsky W; Meli A; Passaglia E
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1352211
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