A-level Chemistry/OCR (Salters)/Open-Book Paper/Stereochemistry in poly(propene)
The three structural forms of poly(alkenes)
editIsotactic
editIsotactic polymers have all their R-groups pointing in the same direction.
Syndiotactic
editSyndiotactic polymers have their R-groups pointing in alternating directions.
Atactic
editAtactic polymers have no regularity in the direction of their R-groups.