Synthesis of ethylene and norbornene copolymer with metallocene catalysts and characteristic analysis

被引：16

作者：

Yao, Zhen ^{[1
]}

Lv, Fei ^{[1
]}

Liu, Shao-Jie ^{[1
]}

Cao, Kun ^{[1
]}

机构：

[1] Zhejiang Univ, Coll Mat Sci & Chem Engn, Dept Chem Engn, Inst Polymerizat & Polymer Engn,State Key Lab Che, Hangzhou 310027, Peoples R China

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2008年 / 107卷 / 01期

关键词：

cycloolefin copolymer; metallocene catalysts; ethylene; norbornene;

D O I：

10.1002/app.27085

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

To synthesis ethylene (E) and norbornene (NB) copolymer with high glass transition temperature and transparency, three metallocene catalysts with different symmetric structure were evaluated, respectively. The catalyst activity, NB fraction in copolymer and the transparency of copolymers produced under various conditions were investigated. It has been found that C-2 symmetric catalyst such as rac-[En(Ind)(2)]ZrCl2 was the best choice to produce copolymer with high NB fraction while keeping high catalyst activity. Furthermore, the effects of reaction conditions on activity of rac-[En(ind)(2)]ZrCl2 and the resultant copolymer structure have also been thoroughly studied. The results indicate that increasing the NB/E ratio is the effective way to increase NB content of copolymer when NB/E ratio is less than 20. However, when NB/E ratio is over 20, further increase in NB/E ratio will lead to significant lower catalyst activity and very limited increase in NB content of copolymer. (C) 2007 Wiley Periodicals, Inc.

引用

页码：286 / 291

页数：6

共 50 条

[41] Composition distribution of ethylene or propylene-norbornene copolymers obtained with zirconocene catalysts [J].

Naga, N ;

Imanishi, Y .

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2003, 41 (03) :441-448

[42] Polymerization of ethylene with metallocene/methylaluminoxane catalysts supported on polysiloxane micro gels and silica [J].

Alt, HG ;

Schertl, P ;

Koppl, A .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1998, 568 (1-2) :263-269

[43] Effects of Silica Support Properties on the Performance of Immobilized Metallocene Catalysts for Ethylene Polymerization [J].

Tran, Dennis ;

Zhang, Chen ;

Choi, Kyu Yong .

MACROMOLECULAR REACTION ENGINEERING, 2022, 16 (06)

[44] Synthesis of Bismuth Oxide Nanoclusters from Norbornene Diblock Copolymer Template [J].

Pan, Chuanyi ;

Yan, Yan ;

Li, Hengde ;

Hu, Sheng .

ADVANCES IN CHEMICAL ENGINEERING II, PTS 1-4, 2012, 550-553 :777-779

[45] Homopolymerization of ethylene and copolymerization of ethylene and 1-hexene with bridged metallocene/methylaluminoxane catalysts:: the influence of the bridging moiety [J].

Köppl, A ;

Babel, AI ;

Alt, HG .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2000, 153 (1-2) :109-119

[46] Synthesis of 8-Anilino-1-naphthalenesulfonic Titanium Complex and Ethylene-norbornene Copolymerization [J].

Zhang Hao ;

Zhang He-Xin ;

Cai Xiao-Ping ;

Hao Xiu-Feng ;

Zhang Xue-Quan .

CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE, 2012, 33 (12) :2784-2788

[47] Synthesis of nitrogen-functionalized polyolefins with metallocene/methylaluminoxane catalysts [J].

Kimmo Hakala ;

Tuulamari Helaja ;

Barbro Löfgren .

Polymer Bulletin, 2001, 46 :123-130

[48] Synthesis of silica-supported metallocene catalysts for olefin polymerization [J].

Bortolussi, F ;

Broyer, JP ;

Spitz, R ;

Boisson, C .

MACROMOLECULAR CHEMISTRY AND PHYSICS, 2002, 203 (17) :2501-2507

[49] Ethylene-norbornene copolymerization by rare-earth metal complexes and by carbon nanotube-supported metallocene catalysis [J].

Tritto, I. ;

Boggioni, L. ;

Ravasio, A. ;

Zampa, C. ;

Hitzbleck, J. ;

Okuda, J. ;

Bredeau, S. ;

Dubois, P. .

MACROMOLECULAR SYMPOSIA, 2007, 260 :114-121

[50] Polyethylene synthesis using zeolites as support material for metallocene catalysts [J].

Moreira, SC ;

Marques, MD .

ANTEC 2000: SOCIETY OF PLASTICS ENGINEERS TECHNICAL PAPERS, CONFERENCE PROCEEDINGS, VOLS I-III, 2000, :3618-3620

← 1 2 3 4 5 →