What is isotactic polymer?
Isotactic polymers are composed of isotactic macromolecules (IUPAC definition). ... An isotactic macromolecule consists of 100% meso diads. Polypropylene formed by Ziegler–Natta catalysis is an isotactic polymer. Isotactic polymers are usually semicrystalline and often form a helix configuration.
What is an isotactic configuration in a polymer chain?
In one configuration, all the R groups may lie on the same side of the plane formed by the extended-chain backbone. Such polymers are termed isotactic. If the substituent groups regularly alternate from one side of the plane to the other, the polymer is termed syndiotactic.