ETHYLENE POLYMERIZATION INITIATED BY SIO2-SUPPORTED NEODYMOCENE CATALYSTS

被引：17

作者：

JIN, JH

UOZUMI, T

SOGA, K

机构：

[1] School of Materials Science, Japan Advanced Institute of Science and Technology JAIST, Tatsunokuchi, Ishikawa, 923-12, Hokuriku 15, Asahidai

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 1995年 / 16卷 / 04期

关键词：

D O I：

10.1002/marc.1995.030160414

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Some SiO2-supported neodymocene catalysts were prepared and polymerization of ethylene was conducted with them using alkylaluminiums, methylaluminoxane (MAO), BuLi and Bu MgEt (Bu: butyl, Et: ethyl) as cocatalysts. The lifetime of these catalysts was found to be very long. Catalytic activity as well as molecular weight of the produced polymer are strongly dependent upon kind and amount of cocatalyst used. With increasing polymerization temperature, the activity increases monotonously up to 80 degrees C. The use of BuMgEt and Al(i-C4H9)(3) as cocatalyst gives the highest activity and highest molecular weight, respectively.

引用

页码：317 / 322

页数：6

共 7 条

[1] HIGHLY REACTIVE ORGANOLANTHANIDES - SYSTEMATIC ROUTES TO AND OLEFIN CHEMISTRY OF EARLY AND LATE BIS(PENTAMETHYLCYCLOPENTADIENYL) 4F HYDROCARBYL AND HYDRIDE COMPLEXES [J].

JESKE, G ;

LAUKE, H ;

MAUERMANN, H ;

SWEPSTON, PN ;

SCHUMANN, H ;

MARKS, TJ .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1985, 107 (26) :8091-8103

[2]

LI Y, 1988, YUJI HUAXUE, V8, P43

[3] A USEFUL METHOD FOR THE SYNTHESIS OF NEODYMOCENE HOMOGENEOUS CATALYSTS FOR ETHYLENE POLYMERIZATION [J].

OLONDE, X ;

MORTREUX, A ;

PETIT, F ;

BUJADOUX, K .

JOURNAL OF MOLECULAR CATALYSIS, 1993, 82 (01) :75-82

[4]

PETTIJOHN T, MET CON 93 HOUSTON, P97

[5]

Sinn H., 1980, ADV ORGANOMET CHEM, V18, P99

[6] HIGHLY ISOSPECIFIC SIO2-SUPPORTED ZIRCONOCENE CATALYST ACTIVATED BY ORDINARY ALKYLALUMINIUMS [J].

SOGA, K ;

KIM, HJ ;

SHIONO, T .

MACROMOLECULAR RAPID COMMUNICATIONS, 1994, 15 (02) :139-143

[7]

YASUDA H, 1994, KOUBUNSHI, V43, P534

← 1 →