Copolymerization of Ethylene and 1‐Hexene with  Ansa ‐Dimethylsilylene(fluorenyl) ( t ‐butylamido)Dimethyltitanium Complexes Activated by Modified Methylaluminoxane | Zendy

Wannaborworn Mingkwan | Zendy; Praserthdam Piyasan | Zendy; Jongsomjit Bunjerd | Zendy; Cai Zhengguo | Zendy; Yano Haruki | Zendy; Shiono Takeshi | Zendy

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Copolymerization of Ethylene and 1‐Hexene with Ansa ‐Dimethylsilylene(fluorenyl) ( t ‐butylamido)Dimethyltitanium Complexes Activated by Modified Methylaluminoxane

Author(s) -

Wannaborworn Mingkwan,

Praserthdam Piyasan,

Jongsomjit Bunjerd,

Cai Zhengguo,

Yano Haruki,

Shiono Takeshi

Publication year - 2013

Publication title -

macromolecular chemistry and physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.57

H-Index - 112

eISSN - 1521-3935

pISSN - 1022-1352

DOI - 10.1002/macp.201300446

Subject(s) - methylaluminoxane , ethylene , copolymer , 1 hexene , hexene , reactivity (psychology) , monomer , polymer chemistry , chemistry , catalysis , derivative (finance) , polymer , medicinal chemistry , polymerization , metallocene , organic chemistry , medicine , alternative medicine , pathology , financial economics , economics

ansa ‐Dimethylsilylene(fluorenyl)( t ‐butylamido)dimethyltitanium complex, Me 2 Si( η 3 ‐C 13 H 8 )( η 1 ‐N t Bu)TiMe 2 ( 1 ) , and its tetraalkylsubsutituted‐fluorenyl derivative, Me 2 Si( η 3 ‐C 29 H 36 )( η 1 ‐N t Bu)TiMe 2 (2) , are used as catalysts for ethylene/1‐hexene copolymerization activated by modified methylalminoxane. 2 is found to show remarkable activity and affords high‐molecular‐weight polymer compared with 1 . The monomer reactivity ratios, r E and r H , are determined to be r E = 3.0 ± 0.15, r H = 0.19 ± 0.06 for 1 , and r E = 2.9 ± 0.15, r H = 0.27 ± 0.02 for 2 , indicating that 2 incorporates 1‐hexene slightly more than 1 .

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