摘要
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 'canon-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.
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 'canon-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.
