Citation: Jun TLAN, Bao Tong HUANG. ESCA STUDY OF DICHLOROZIRCONOCENE/METHYLALUMINOXANE OLEFIN POLYMERIZATION CATALYST SYSTEM[J]. Chinese Chemical Letters, ;1996, 7(1): 67-70. shu

ESCA STUDY OF DICHLOROZIRCONOCENE/METHYLALUMINOXANE OLEFIN POLYMERIZATION CATALYST SYSTEM

Jun TLAN ,
Bao Tong HUANG

Changchun institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022

Received Date: 17 October 1994

Fund Project: Supported by National Natural Science Foundation of China (NNSFC).

An investigation has been undertaken by use of ESCA in the characterization of the central metal(Zr) of dichlorozirconocene/methylaluminoxane homogeneous olefin polymerization catalyst.The change of electron density shown by a shift in ESCA signals (181.8→182.7eV) indicates that the catalytic species are "cation-like".Within the range of detecting sensitivity of ESCA spectrometer,only a part of the new catalytic derivative was formed.The influence of complexion time and Al:Zr ratio on the formation of the catalytic zirconocene cation has also been investigated.
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