摘要 |
Provided are a solid catalyst which includes an internal electron donor mixture including at least one selected from bicycloalkane dicarboxylates and bicycloalkene dicarboxylates, and benzene 1,2-dicarboxylic acid ester, and can produce a polypropylene having excellent stereoregularity and melt flowability with a high catalytic activity, and a method for preparing polypropylene using the catalyst. |