Copolymerization of ethylene and propylene using silicon tetrachloride-modified silica/MAO with Et[Ind]2ZrCl2 metallocene catalyst

被引：0
|
作者：
Chao, CR
Pratchayawutthirat, W
Praserthdam, P [1 ]
Shiono, T
Rempel, GL
机构：
[1] Chulalongkorn Univ, Dept Chem Engn, Bangkok 10330, Thailand
[2] Tokyo Inst Technol, Chem Resources Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan
[3] Univ Waterloo, Dept Chem Engn, Waterloo, ON N2L 3G1, Canada
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 2002年 / 23卷 / 12期
关键词：
copolymerization; metallocene catalysts; silicas; silicon tetrachloride; supports;
D O I：
10.1002/1521-3927(20020801)23:12<672::AID-MARC672>3.0.CO;2-I
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
For the copolymerization of ethylene with propylene or a higher a-olefin, using Et[Ind](2)ZrCl2 metallocene catalyst, modification of silica with silicon tetrachloride prior to MAO adsorption can increase the activity, which is more pronounced for ethylene/1-hexene copolymerization at higher pressure and temperature. The molecular weight of the copolymer produced was lower and the polydispersity tends to be decreased. No significant effect of SiCl4 addition on the microstructure and the
引用
收藏
页码：672 / 675
页数：4
相关论文
共 50 条
  • [21] In situ copolymerization of ethylene to produce linear low-density polyethylene by Ti(OBu)4/AlEt3-MAO/SiO2/Et(Ind)2ZrCl2
    Zhu, BC
    Guo, CY
    Liu, ZY
    Yin, YQ
    JOURNAL OF APPLIED POLYMER SCIENCE, 2004, 94 (06) : 2451 - 2455
  • [22] Growth of Polyethylene Nanofibrils Over rac-Et(Indenyl)2ZrCl2/MAO Catalyst Supported on Silica Nanotubes
    Lee, Sang Yool
    Han, Joong Jin
    Lee, Sang Bok
    Choi, Kyu Yong
    MACROMOLECULAR REACTION ENGINEERING, 2015, 9 (06) : 570 - 578
  • [23] Copolymerization of ethylene and 1-hexene using (n-BuCp)2ZrCl2 catalyst activated by the cross-linked MAO supported cocatalyst
    Keun-Byoung Yoon
    Dong-Ho Lee
    Seok Kyun Noh
    Macromolecular Research, 2006, 14 : 240 - 244
  • [24] Influence of trimethylaluminum on kinetics of rac-Et(Ind)2ZrCl2/aluminoxane catalyzed ethylene polymerization
    Guo, Yintian
    He, Feng
    Zhang, Zhen
    Khan, Akbar
    Fu, Zhisheng
    Xu, Junting
    Fan, Zhiqiang
    JOURNAL OF ORGANOMETALLIC CHEMISTRY, 2016, 808 : 109 - 116
  • [25] Polymerization of Ethylene over rac-Et(1-indenyl)2ZrCl2/MAO Catalyst Supported on Pseudo-Inverse Opal Silica Particles
    Lee, Sang Yool
    Choi, Kyu Yong
    INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2012, 51 (29) : 9742 - 9749
  • [26] Ethylene Polymerization with Methylaluminoxane/(nBuCp)2ZrCl2 Catalyst Supported on Silica and Silica-Alumina at Different AlMAO/Zr Molar Ratios
    Carrero, A.
    van Grieken, R.
    Paredes, B.
    JOURNAL OF APPLIED POLYMER SCIENCE, 2011, 120 (01) : 599 - 606
  • [27] Silica-supported (nBuCp)2ZrCl2: effect of catalyst active center distribution on ethylene-1-hexene copolymerization
    Atiqullah, Muhammad
    Anantawaraskul, Siripon
    Emwas, Abdul-Hamid M.
    Al-Harthi, Mamdouh A.
    Hussain, Ikram
    Ul-Hamid, Anwar
    Hossaen, Anwar
    POLYMER INTERNATIONAL, 2014, 63 (06) : 955 - 972
  • [28] Effect of Zr-modified SiO2-supported metallocene/MAO catalyst on copolymerization of ethylene/1-octene
    Pothirat, Tipawan
    Jongsomjit, Bunjerd
    Praserthdam, Piyasan
    CATALYSIS LETTERS, 2008, 121 (3-4) : 266 - 273
  • [29] Effect of Zr-Modified SiO2-Supported Metallocene/MAO Catalyst on Copolymerization of Ethylene/1-Octene
    Tipawan Pothirat
    Bunjerd Jongsomjit
    Piyasan Praserthdam
    Catalysis Letters, 2008, 121 : 266 - 273
  • [30] Homo- and copolymerization of styrene and l-alkene using Ph2Zn-Et(Ind)2ZrCl2-MAO initiator systems
    Rabagliati, FM
    Cancino, RA
    de Ilarduya, AM
    Muñoz-Guerra, S
    EUROPEAN POLYMER JOURNAL, 2005, 41 (05) : 1013 - 1019
12345