Petroleum Additives
Polyisobutylene
| CAS Number | 9003-27-4 |
|---|---|
| Molecular Formula | C4H8 |
| Appearance | Colorless to light yellow viscous liquid or elastic rubbery semi-solid |
| Standard | Melting Point: 54-56 °C |
Polyisobutylene (PIB) is a synthetic polymer known for its unique combination of chemical stability, excellent low-temperature flexibility, and outstanding resistance to heat, oxygen, and ozone. It is a linear polymer composed of repeating isobutylene monomer units, which contributes to its exceptional performance characteristics.
| Boiling Point | 300 °C |
|---|---|
| Density | 0.92 g/mL at 25 °C (lit.) |
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