Complex sentence: Because post-metallocene catalysts are homogeneous like Kaminsky type catalysts, the catalytic properties can be controlled by modification of the structure of the catalyst, so a large number of studies have been done by academics and companies to construct high-performance catalysts based on new concepts.
Split into simpler sentences: Because post-metallocene catalysts are homogeneous, like Kaminsky-type catalysts, their catalytic properties can be controlled by modification of the structure of the catalyst. A large number of studies have been done by academics and companies to construct high-performance post-metallocene catalysts based on new concepts.