A Comparative Study of Ethylene/α-Olefin Copolymerization with Silane-Modified Silica-Supported MAO Using Zirconocene Catalysts

被引：0
|
作者：
Bunjerd Jongsomjit
Paninee Kaewkrajang
Sieghard E. Wanke
Piyasan Praserthdam
机构：
[1] Chulalongkorn University,Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering
[2] University of Alberta,Department of Chemical and Materials Engineering
来源：
Catalysis Letters | 2004年 / 94卷
关键词：
copolymerization; metallocene catalyst; polyethylene; silica; support;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Activities of ethylene/α-olefin copolymerization were found to increase with silane-modified silica-supported MAO using ansa-zirconocene catalyst. The increase in activities was less pronounced when higher α-olefins were used. However, silane modification resulted in the narrower molecular weight distribution of polymers. 13C NMR revealed that ethylene incorporation in all systems gave polymers with the similar triad distribution.
引用
收藏
页码：205 / 208
页数：3
相关论文
共 46 条
  • [31] Studies of ethylene/1-hexene copolymerization over zirconocene catalyst supported on MAO-modified MgCl2(THF)2.: The effect of copolymerization conditions oil the intermolecular heterogeneity of copolymers
    Bialek, M
    Czaja, K
    Sacher-Majewska, B
    POLIMERY, 2003, 48 (09) : 645 - 648
  • [32] Studies on ethylene/1-hexene copolymerization over the zirconocene catalyst supported on MAO-modified MgCl2(THF)2. The effect of copolymerization conditions on catalyst activity and copolymer properties
    Bialek, Marzena
    Utrata, Alicja
    Czaja, Krystyna
    Polimery/Polymers, 2002, 47 (01): : 59 - 63
  • [33] A COMPARATIVE-STUDY OF CO ADSORPTION AND CO OXIDATION ON MODEL SILICA-SUPPORTED AND SINGLE-CRYSTAL PD CATALYSTS
    SZANYI, J
    XU, XP
    GOODMAN, DW
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1993, 206 : 83 - PETR
  • [34] SELECTIVE AIR OXIDATION OF METHANE TO FORMALDEHYDE USING SILICA-SUPPORTED MOCL5/R4SN OLEFIN METATHESIS CATALYSTS
    AMIREBRAHIMI, V
    ROONEY, JJ
    JOURNAL OF MOLECULAR CATALYSIS, 1989, 50 (03): : L17 - L22
  • [35] Structures of silica-supported Co catalysts prepared using microemulsion and their catalytic performance for the formation of carbon nanotubes through the decomposition of methane and ethylene
    Takenaka, Sakae
    Orita, Yoshiki
    Matsune, Hideki
    Tanabe, Eishi
    Kishida, Masahiro
    JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (21): : 7748 - 7756
  • [36] Copolymerization of ethylene and propylene using silicon tetrachloride-modified silica/MAO with Et[Ind]2ZrCl2 metallocene catalyst
    Chao, CR
    Pratchayawutthirat, W
    Praserthdam, P
    Shiono, T
    Rempel, GL
    MACROMOLECULAR RAPID COMMUNICATIONS, 2002, 23 (12) : 672 - 675
  • [37] Effect of Ga- and BCl3-modified silica-supported [t-BuNSiMe2(2,7-t-Bu2Flu)]TiMe2/MAO catalyst on ethylene/1-hexene copolymerization
    Kaivalchatchawal, Patcharaporn
    Samingprai, Sutheerawat
    Shiono, Takeshi
    Praserthdam, Piyasan
    Jongsomjit, Bunjerd
    EUROPEAN POLYMER JOURNAL, 2012, 48 (07) : 1304 - 1312
  • [38] A kinetic study of ethylene and 1-hexene homo- and copolymerization catalyzed by a silica-supported Cr(IV) complex: Evidence for propagation by a migratory insertion mechanism
    Ajjou, Jamila Amor Nait
    Scott, Susannah L.
    1600, American Chemical Society (122):
  • [39] A kinetic study of ethylene and 1-hexene homo- and copolymerization catalyzed by a silica-supported Cr(IV) complex: Evidence for propagation by a migratory insertion mechanism
    Ajjou, JAN
    Scott, SL
    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (37) : 8968 - 8976
  • [40] Ethylene trimerization using half-sandwich titanium-based catalysts supported on mesoporous silica modified with ionic liquids
    Gharajedaghi, Sajjad
    Mohamadnia, Zahra
    Marefat, Mohamadreza
    Habibi, Younes
    Ahmadi, Ebrahim
    Zakavi, Saeed
    APPLIED ORGANOMETALLIC CHEMISTRY, 2024, 38 (05)
12345