Copolymerization of ethylene with 1-octene using Et(Ind)2ZrCl2/MAO catalyst

被引：0
|
作者：
Yao, H [1 ]
Xiao, SJ [1 ]
Lu, HL [1 ]
机构：
[1] Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
来源：
CHINESE JOURNAL OF POLYMER SCIENCE | 1998年 / 16卷 / 01期
关键词：
copolymerization; ethylene; l-Octene; methylaluminoxane; Et(Ind)(2)ZrCl2;
D O I：
暂无
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Copolymerization of ethylene/1-octene was carried out in toluene with various concentrations of comonomer in the feed using Et(Ind)(2)ZrCl2/MAO (methyl aluminoxane) as catalyst. It was found that with the increase of 1-octene concentration in the feed the content of 1-octene in the copolymer increases, while the density, melting point, crystallinity and intrinsic viscosity of copolymer decrease. A copolymer with very low density, containing 11.5 mol% of 1-octene (VLLDPE) can be produced with this catalyst system. The effect of temperature and zirconium aluminum mole ratio of the catalyst on the copolymerization was also investigated. The results of C-13 NMR determination of the copolymer showed that the 1-octene units in the copolymer are principally isolated.
引用
收藏
页码：32 / 37
页数：6
相关论文
共 50 条
  • [21] Dynamic simulation and experimental evaluation of EPDM synthesis with Et(Ind)2ZrCl2/MAO catalyst system
    Haag, MC
    Dos Santos, JHZ
    Dupont, J
    Secchi, AR
    JOURNAL OF APPLIED POLYMER SCIENCE, 2000, 76 (03) : 425 - 438
  • [22] Dynamic simulation and experimental evaluation of EPDM synthesis with Et(Ind)2ZrCl2/MAO catalyst system
    Haag, Mônica Carcuchinski
    Dos Santos, João Henrique Zimnoch
    Dupont, Jairton
    Secchi, Argimiro Resende
    2000, John Wiley & Sons Inc, United States (76)
  • [23] Preparation and Properties of Ethylene/POSS Copolymer with rac-Et(Ind)2ZrCl2 Catalyst
    Zhang, He-xin
    Jung, Myung-sung
    Shin, Young-jun
    Yom, Keun-byoung
    Lee, Dong-ho
    JOURNAL OF APPLIED POLYMER SCIENCE, 2009, 111 (06) : 2697 - 2702
  • [24] Long-chain branched polyethene polymerized by metallocene catalysts Et[Ind]2ZrCl2/MAO and Et[IndH4]2ZrCl2/MAO
    Helsinki Univ of Technology, Hut, Finland
    Macromolecules, 24 (8448-8454):
  • [25] Long-chain branched polyethene polymerized by metallocene catalysts Et[Ind]2ZrCl2/MAO and Et[IndH4]2ZrCl2/MAO
    Malmberg, A
    Kokko, E
    Lehmus, P
    Löfgren, B
    Seppälä, JV
    MACROMOLECULES, 1998, 31 (24) : 8448 - 8454
  • [26] In-Depth Investigation of Ethylene Solution Polymerization Kinetics With rac-Et(Ind)2ZrCl2/MAO
    Mehdiabadi, Saeid
    Soares, Joao B. P.
    MACROMOLECULAR CHEMISTRY AND PHYSICS, 2013, 214 (02) : 246 - 262
  • [27] A chemiluminescence study on thermal and photostability of ethylene/α-olefin copolymers synthesized with rac-Et(Ind)2ZrCl2/MAO catalyst system
    Corrales, T.
    Escudero, M.
    Quijada, R.
    Catalina, F.
    Abrusci, C.
    EUROPEAN POLYMER JOURNAL, 2009, 45 (09) : 2708 - 2716
  • [28] Synthesis of various functional propylene copolymers using rac-Et[1-Ind]2ZrCl2/MAO as the catalyst system
    Kaya, A
    Jakisch, L
    Komber, H
    Voigt, D
    Pionteck, J
    Voit, B
    Schulze, U
    MACROMOLECULAR RAPID COMMUNICATIONS, 2001, 22 (12) : 972 - 977
  • [29] DEGREE OF STEREOCHEMICAL CONTROL OF RAC-ET[IND]2ZRCL2 MAO CATALYST AND PROPERTIES OF ANISOTACTIC POLYPROPYLENES
    RIEGER, B
    MU, X
    MALLIN, DT
    RAUSCH, MD
    CHIEN, JCW
    MACROMOLECULES, 1990, 23 (15) : 3559 - 3568
  • [30] Spherical MgCl2 supported MAO/rac-Et[Ind]2ZrCl2 catalyst for propylene polymerization
    Guan, Z
    Zheng, Y
    Jiao, SK
    ACTA CHIMICA SINICA, 2001, 59 (10) : 1783 - 1787
12345