In atactic PP (aPP) the orientation is random. In syndiotactic PP (sPP) the CH(3)-side groups on the monomer alternately point toward the two sides of the polymer backbone.

In atactic PP (aPP) the orientation is random. In syndiotactic PP (sPP) the CH(3)-side groups on the monomer alternately point toward the two sides of the polymer backbone.

In atactic PP (aPP) the orientation is random. In syndiotactic PP (sPP) the CH3–side groups on the monomer alternately point toward the two sides of the polymer backbone. The most sought-after version ...

“This switch from atactic polypropylene to isotactic polypropylene essentially created a multibillion dollar industry because atactic polypropylene is almost useless,” Leibfarth said.

Polypropylene (PP) is one of the most widely used plastics in the world. By controlling the spatial orientation of the propylene building blocks and additional polar components, it should be possible ...