| Uses: | thermoplastics |
| Monomer: | styrene |
| Polymerization: | free radical chain polymerization (atactic), Ziegler-Natta polymerization (syndiotactic) |
| Morphology: | highly amorphous (atactic), highly crystalline (syndiotactic) |
| Melting temperature: | 270 oC (syndiotactic) |
| Glass transition temperature: | 100 oC |