Aqueous suspension polymerization of isobutene initiated by 1,2-C6F4[B(C6F5)2]2

被引:70
作者
Lewis, SP
Henderson, LD
Chandler, BD
Parvez, M
Piers, WE [1 ]
Collins, S
机构
[1] Univ Akron, Dept Polymer Sci, Akron, OH 44325 USA
[2] Univ Calgary, Dept Chem, Calgary, AB, Canada
关键词
D O I
10.1021/ja0445387
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Lewis acidic, chelating diborane 1 forms stable oxonium acids 2 in the presence of excess MeOH or water. Diborane 1 is shown to be an effective co-initiator for the suspension polymerization of isobutene in aqueous media at sufficiently low temperatures. Poly(isobutene) or butyl rubber is obtained at moderate to high conversion and with Mw < 200 K and PDI ≈ 2 under these conditions. Copyright © 2005 American Chemical Society.
引用
收藏
页码:46 / 47
页数:2
相关论文
共 39 条
  • [1] AKOPOV EK, 1963, ZH PRIKL KHIM, V36, P1916
  • [2] Arnett EM., 1970, J. Am. Chem. Soc, V92, P1260, DOI [10.1021/ja00708a026, DOI 10.1021/JA00708A026]
  • [3] ATHEY RD, 1991, EMULSION POLYM TECHN
  • [4] Syntheses and X-ray crystal structures of novel oxonium ion-12-crown-4 complexes isolated from liquid clathrate media
    Atwood, JL
    Junk, PC
    [J]. JOURNAL OF COORDINATION CHEMISTRY, 2000, 51 (04) : 379 - 397
  • [5] Catalytic polymerization of ethylene in aqueous emulsion with a simple in situ catalyst
    Bauers, FM
    Chowdhry, MM
    Mecking, S
    [J]. MACROMOLECULES, 2003, 36 (18) : 6711 - 6715
  • [6] Submicron polyethylene particles from catalytic emulsion polymerization
    Bauers, FM
    Thomann, R
    Mecking, S
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (29) : 8838 - 8840
  • [7] Aqueous homo- and copolymerization of ethylene by neutral nickel(II) complexes
    Bauers, FM
    Mecking, S
    [J]. MACROMOLECULES, 2001, 34 (05) : 1165 - 1171
  • [8] STRUCTURALLY DIVERSE MANGANESE(III) SCHIFF-BASE COMPLEXES - CHAINS, DIMERS, AND CAGES
    BONADIES, JA
    KIRK, ML
    LAH, MS
    KESSISSOGLOU, DP
    HATFIELD, WE
    PECORARO, VL
    [J]. INORGANIC CHEMISTRY, 1989, 28 (11) : 2037 - 2044
  • [9] Oxonium ions from aqua regia: Isolation by hydrogen bonding to crown ethers
    Calleja, M
    Johnson, K
    Belcher, WJ
    Steed, JW
    [J]. INORGANIC CHEMISTRY, 2001, 40 (19) : 4978 - 4985
  • [10] Calleja M, 2001, NEW J CHEM, V25, P1475