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

[21] Theoretical study of ethylene polymerization on Ziegler-Natta catalysts and on metallocene catalysts [J].

Shiga, A .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 1999, 146 (1-2) :325-334

[22] Chain transfer reaction to diethylzinc in ethylene polymerization by metallocene catalysts [J].

Wei Wang ;

Liping Hou ;

Taoyi Zhang ;

Changcheng Liu .

Journal of Polymer Research, 2018, 25

[23] Chain transfer reaction to diethylzinc in ethylene polymerization by metallocene catalysts [J].

Wang, Wei ;

Hou, Liping ;

Zhang, Taoyi ;

Liu, Changcheng .

JOURNAL OF POLYMER RESEARCH, 2018, 25 (07)

[24] Polymer immobilized silane bridged metallocene catalysts for ethylene polymerization [J].

Zhu, HB ;

Jin, GX ;

Hu, NH .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 2002, 655 (1-2) :167-171

[25] Solubility of ethylene in norbornene plus toluene plus cyclic olefin copolymer systems [J].

Sato, Yoshiyuki ;

Hosaka, Naoki ;

Inomata, Hiroshi ;

Kanaka, Keiichi .

FLUID PHASE EQUILIBRIA, 2013, 352 :80-85

[26] 3D-QSAR analysis of metallocene-based catalysts used in ethylene polymerisation [J].

Cruz, V ;

Ramos, J ;

Muñoz-Escalona, A ;

Lafuente, P ;

Peña, B ;

Martinez-Salazar, J .

POLYMER, 2004, 45 (06) :2061-2072

[27] Synthesis and Characterization of Multi-block Polymers Consisting of Polyethylene/Ethylene-propylene Random Copolymer via [N,P]-type Non-metallocene Catalysts [J].

Wang, Qiu-can ;

Zhou, Yang ;

Zhang, Jiao-jiao ;

Yu, Hong-chao ;

Zhang, Shao-meng ;

Fu, Yao ;

Shi, Zi-hai ;

Li, Hong-ming ;

Xia, Bi-hua ;

Huang, Qi-gu .

ACTA POLYMERICA SINICA, 2019, 50 (02) :124-134

[28] Synthesis and Characterization of Low Molecular Weight Ethylene-Propylene Copolymers Prepared Using Metallocene Catalysts [J].

Tourkmani, Kenda ;

Casas, Emilio ;

Paredes, Beatriz ;

Moreno, Jovita ;

Perez, Ponciano ;

Maria Escola, Jose ;

Van Grieken, Rafael .

MACROMOLECULAR REACTION ENGINEERING, 2014, 8 (12) :796-804

[29] Nickel catalysts for the addition polymerization of norbornene and its derivatives and for their copolymerization with ethylene [J].

K. L. Makovetskii ;

V. I. Bykov ;

E. Sh. Finkel’shtein .

Kinetics and Catalysis, 2006, 47 :241-244

[30] Efficient copolymerization of ethylene with norbornene mediated by phosphine sulfonate palladium catalysts [J].

Liu, Yongzheng ;

Cong, Ran ;

Pan, Yao ;

Chen, Min ;

Xu, Menghe .

EUROPEAN POLYMER JOURNAL, 2024, 203

← 1 2 3 4 5 →