Allyl Containing Iron Post-Met allocene Catalyst for Ethylene Polymerization

Abstract

Abstract: Tridentate ligand[(2,6-ArN[CDS₁]C(Me))₂C₅H₃N](Ar=4-allyl-2,6-( i-Pr)₂C₆H₃)((Ar=4-allyl-2,6-( i-Pr)₂C₆H₃)(4)which contains allyl groups on each aryl ring was ready prepared and reacted with FeCl₂·4H₂Oto give the precatalyst [(2,6-ArN[CDS₁]C(CH₃))₂C₅H₃N]. FeCl₂(FeCl₂(5). Compounds 2-5 were characterized by ¹H NMR, EI MS,and IR. The complex 5 which was actived by methylaluminoxane(MAO) exhibits high activity for ethylene polymerization[1.9×10⁶ g pE·(mol Fe·h)^-1 at 0℃]. It was showed that the activity was decreased with increasing temperature and the polymer product was highly linear PEwith M η varing from 50000 to 260000.

Key words: Post met allocene catalyst, Alkenyl substituent, Ethylene polymerization, Tridentate complex containing nitrogen and iron

CLC Number:

O614.4

TrendMD:

LIU Chang-Kun, JIN Guo-Xin  . Allyl Containing Iron Post-Met allocene Catalyst for Ethylene Polymerization[J]. Chem. J. Chinese Universities, 2001, 22(7): 1233.

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Allyl Containing Iron Post-Met allocene Catalyst for Ethylene Polymerization

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