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Volumn 40, Issue 9, 2007, Pages 2993-3004

Synthesis of low density poly(ethylene) using nickel iminophosphonamide complexes

Author keywords

[No Author keywords available]

Indexed keywords

METAL COMPLEXES; NICKEL; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; OLIGOMERIZATION; POLYMERIZATION; SYNTHESIS (CHEMICAL); X RAY CRYSTALLOGRAPHY;

EID: 34248550471     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma062332f     Document Type: Article
Times cited : (33)

References (132)
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    • Odian, G. Principles of Polymerization, 3rd ed.; John Wiley and Sons, Inc.: New York, 1991; pp 304-306. However see ref 1c.
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    • Patent Application EP 01/94456 A2, 1986
    • (b) Fink, G.; Möhring, V. M. Patent Application EP 01/94456 A2, 1986.
    • Fink, G.1    Möhring, V.M.2
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    • cf. Chem. Abstr. 2002, 137, 201636.
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    • cf1
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    • 34248554603 scopus 로고
    • U.S. Patent 5,324,799, Cont.-in-part of U.S. Ser. No. 662, 167, abandoned
    • (b) Yano, A.; Yamada, S.; Yamada, K. U.S. Patent 5,324,799, 1994; Cont.-in-part of U.S. Ser. No. 662, 167, abandoned.
    • (1994)
    • Yano, A.1    Yamada, S.2    Yamada, K.3
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    • 84942780424 scopus 로고
    • Wilkinson, G, Stone, F. G. A, Abel, E, Eds, Pergamon: Oxford, U.K
    • (a) Jolly, P. W. in Comprehensive Organometallic Chemistry; Wilkinson, G., Stone, F. G. A., Abel, E., Eds.; Pergamon: Oxford, U.K., 1982; Vol. 6, pp 145-182.
    • (1982) Comprehensive Organometallic Chemistry , vol.6 , pp. 145-182
    • Jolly, P.W.1
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    • 34248509284 scopus 로고    scopus 로고
    • It should be noted that most metallocene catalyzed HDPE contains sparse levels of long chain branching, depending on catalyst and conditions. 1-2 Therefore it can be concluded that the higher MW PE sample prepared using the Keim catalyst must have higher levels of
    • 1-2 Therefore it can be concluded that the higher MW PE sample prepared using the Keim catalyst must have higher levels of
  • 101
    • 34248543801 scopus 로고    scopus 로고
    • LCB than the linear PE standard used.
    • LCB than the "linear" PE standard used.
  • 104
  • 107
    • 34248528099 scopus 로고    scopus 로고
    • 4] (as opposed to P) is used as the variable, the simulations predict extensive (but unproductive) chain-walking compared to insertion. The use of eq 6 to calculate reaction probabilities under such conditions is not valid; Curtin Hammett conditions would apply to the various Ni-R present. In this case, it is the relative stability of the π complexes and the insertion barriers that will dictate the branching distribution.
    • 4] (as opposed to P) is used as the variable, the simulations predict extensive (but unproductive) chain-walking compared to insertion. The use of eq 6 to calculate reaction probabilities under such conditions is not valid; Curtin Hammett conditions would apply to the various Ni-R present. In this case, it is the relative stability of the π complexes and the insertion barriers that will dictate the branching distribution.
  • 111
    • 34248534695 scopus 로고    scopus 로고
    • -1) but with a very unfavorable pre-equilibrium in forming the relevant agostic alkyl from the most stable β-agostic structure.
    • -1) but with a very unfavorable pre-equilibrium in forming the relevant agostic alkyl from the most stable β-agostic structure.
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    • Te, Velde, G.; Baerends, E. J. J. Comput. Phys. 1992, 99, 84.
    • (b) Te, Velde, G.; Baerends, E. J. J. Comput. Phys. 1992, 99, 84.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.