abstract |
The invention relates to a catalyst component applied to a vinyl polymerization reaction, a preparation method of the catalyst component and a catalyst thereof. The catalyst component comprises a magnesium-alcohol compound, a titanium compound, an alkoxy compound, an organic aluminum compound, a long-carbon-chain monoester compound and a sulfuryl-containing compound. The catalyst has proper activity and very high hydrogen regulation sensitivity; and the piling density of obtained polymer powder is high, and the molecular weight distribution is wide. |