Isotactic

Isotactic polymers refer to those polymers formed by branched monomers that have the characteristic of having all the branch groups on the same side of the polymeric chain[?]. The monomers are all oriented in the same way: If we represent a monomer by AB then an isotactic polymer is AB-AB-AB-AB-AB-etc

Besides Isotactism, there are other two types of stereoregularity frequently found in the scientific literature:

Syndiotactism[?]- The monomers have alternating orientations within the polymer chain: AB-BA-AB-BA-AB-BA-etc

and Atactism[?]- The monomers have random orientations within the chain:

 e.g. AB-AB-BA-AB-BA-BA-BA-AB-etc