| 摘要 |
A new class of organochromium compounds are described, namely, tetravalent chromium compounds having the formula Y4Cr where Y is alkyl, cyclohexyl-substituted alkyl or phenyl-substituted alkyl. Typical compounds are tetra(neopentyl)chromium, tetra(cyclohexylmethyl)chromium and tetra(neophyl)chromium. These compounds are new catalysts for the polymerization of 1-olefins and can be used in solution or extended on a solid support such as silica.
|
