Syndiotactic poly(propylene) (sPP) of high regio- and
stereo-regularities was successfully synthesized by Ewen
et al.[1] using a metallocene catalytic system, instead of the
traditional Ziegler-Natta catalytic system.[2] This has led to
renewed interest in this polymer.[3–8] Despite some of its
interesting properties, such as high ductility and high
optical transparency, the syndiotactic form of PP (i.e. sPP)
has enjoyed less commercial success than its isotactic
counterpart (iPP).[9]