Increasing the initiation efficiency of ruthenium-based ring-opening metathesis initiators: Effect of excess phosphine

被引:88
作者
Bielawski, CW [1 ]
Grubbs, RH [1 ]
机构
[1] CALTECH, Div Chem & Chem Engn, Arnold & Mabel Beckman Labs Chem Synth, Pasadena, CA 91125 USA
关键词
D O I
10.1021/ma011214j
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Polymers with narrow polydispersities were obtained from ROMP initiator when commercially available phosphines were included. Similar to controlled radical polymerizations, it was shown that enhanced control is related to a fast, dynamic equilibrium that exists between dormant and active species and is mediated by the type and quantity of phosphine employed.
引用
收藏
页码:8838 / 8840
页数:3
相关论文
共 11 条
  • [1] Bielawski CW, 2000, ANGEW CHEM INT EDIT, V39, P2903, DOI 10.1002/1521-3773(20000818)39:16<2903::AID-ANIE2903>3.0.CO
  • [2] 2-Q
  • [3] Homogeneous metathesis polymerization by well-defined group VI and group VIII transition-metal alkylidenes: Fundamentals and applications in the preparation of advanced materials
    Buchmeiser, MR
    [J]. CHEMICAL REVIEWS, 2000, 100 (04) : 1565 - 1604
  • [4] N-Heterocyclic carbenes:: application of ruthenium-alkylidene complexes in ring-opening metathesis polymerization
    Frenzel, U
    Weskamp, T
    Kohl, FJ
    Schattenman, WC
    Nuyken, O
    Herrmann, WA
    [J]. JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1999, 586 (02) : 263 - 265
  • [5] Recent advances in olefin metathesis and its application in organic synthesis
    Grubbs, RH
    Chang, S
    [J]. TETRAHEDRON, 1998, 54 (18) : 4413 - 4450
  • [6] Ivin K. J., 1997, OLEFIN METATHESIS ME
  • [7] MATYJASZEWSKI K, 1998, CONTROLLED RADICAL P, V685
  • [8] A new and highly efficient Grubbs initiator for ring-opening metathesis polymerization
    Robson, DA
    Gibson, VC
    Davies, RG
    North, M
    [J]. MACROMOLECULES, 1999, 32 (19) : 6371 - 6373
  • [9] New insights into the mechanism of ruthenium-catalyzed olefin metathesis reactions
    Sanford, MS
    Ulman, M
    Grubbs, RH
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (04) : 749 - 750
  • [10] Schuster M, 1997, ANGEW CHEM INT EDIT, V36, P2037