Macromolecular order in plastic kingdom

The three molecular configurations - isotactic, syndiotactic, and atactic - differ by the mutual orientation of the methyl group (orange) and hydrogen (green). Image: MIPT Press Office

King of plastics calls for macromolecular order

Pentad. The relative abundance of pentads - isotactic five-unit segments in a polymer chain - is a good measure of the polymer's overall isotacticity. Image: MIPT Press Office

What makes it strong

The dependence of elastic modulus E on crystallinity: Q and S label quenched and slowly cooled samples, M and ZN correspond to different catalysts, and the numbers from 25 to 95 indicate the percentage of sample isotacticity. Imgae: MIPT Press Office