CHARACTERIZATION OF INTERMEDIATE STEPS IN THE POLYMERIZATIONS WITH ZIEGLER CATALYSTS ON MGH2 BY CP/MAS NMR-SPECTROSCOPY

被引：7

作者：

BENN, R

HERMANN, W

机构：

[1] Max-Planck-Institut für Kohlenforschung, Mulheim, W-4330

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH | 1991年 / 30卷 / 04期

关键词：

D O I：

10.1002/anie.199104261

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The binuclear complex [Cp2Zr(mu-Cl)(mu-CH2Me)AlMeEt] 1 attached to a support is formed by the reaction of [Cp2ZrMe2] and MgH2 after the addition of the cocatalyst (Et2AlCl)2. Species 1 catalyzes the polymerization of ethylene by inserting ethylene molecules into the Zr-mu-alkyl bond. The intermediate steps in the formation of 1 and the polymerization could be observed by means of C-13 CP/MAS NMR spectroscopy.

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页码：426 / 428

页数：3

相关论文

共 49 条

[41] NMR-STUDIES OF PYRIDINE ON SILICA-ALUMINA [J].

MACIEL, GE ;

HAW, JF ;

CHUANG, IS ;

HAWKINS, BL ;

EARLY, TA ;

MCKAY, DR ;

PETRAKIS, L .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1983, 105 (17) :5529-5535

[42]

Mundy JN., 1983, SOLID STATE NUCL MET

[43] SILICA-SUPPORTED CHROMIUM CATALYSTS FOR ETHYLENE POLYMERIZATION - THE ACTIVE OXIDATION-STATES OF CHROMIUM [J].

MYERS, DL ;

LUNSFORD, JH .

JOURNAL OF CATALYSIS, 1986, 99 (01) :140-148

[44] SELECTION OF NON-PROTONATED CARBON RESONANCES IN SOLID-STATE NUCLEAR MAGNETIC-RESONANCE [J].

OPELLA, SJ ;

FREY, MH .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1979, 101 (19) :5854-5856

[45] COURSE OF LOW PRESSURE POLYMERIZATION OF ALPHA-OLEFINS - COMPLEX POLYMERIZATION [J].

PATAT, F ;

SINN, H .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 1958, 70 (16) :496-500

[46] ASYMMETRIC HYDROOLIGOMERIZATION OF PROPYLENE [J].

PINO, P ;

CIONI, P ;

WEI, J .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1987, 109 (20) :6189-6191

[47]

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

[48] SUPPORTED ORGANOACTINIDES - HIGH-RESOLUTION SOLID-STATE C-13 NMR-STUDIES OF CATALYTICALLY ACTIVE, ALUMINA-BOUND (PENTAMETHYLCYCLOPENTADIENYL)THORIUM METHYL AND HYDRIDE COMPLEXES [J].

TOSCANO, PJ ;

MARKS, TJ .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1985, 107 (03) :653-659

[49] QUANTITATIVE-DETERMINATION OF THE MONOCLINIC CRYSTALLINE PHASE CONTENT IN POLYETHYLENE BY C-13 NMR [J].

VANDERHART, DL ;

KHOURY, F .

POLYMER, 1984, 25 (11) :1589-1599

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