| Formula / Notation | (C16H14O3)n |
|---|---|
| CAS Number | 25037-45-0 |
| Molecular Weight | Variable (polymer) |
| Melting Point | ~267 °C |
| Boiling Point | Decomposes |
| Density | 1.20 g/cm³ |
| Solubility | Insoluble in water |
| Appearance | clear colourless solid |
| Also Known As | PC; Lexan; Makrolon; bisphenol A polycarbonate |
| Category | Polymers & Plastics |
What is Polycarbonate?
Polycarbonate (PC) is a thermoplastic polymer containing carbonate groups (–O–CO–O–) in the main chain. The most common type is bisphenol A polycarbonate, produced by polycondensation of bisphenol A with phosgene or diphenyl carbonate. It combines optical clarity with exceptional impact resistance — up to 250 times stronger than glass — while remaining lightweight and easily moulded. Its glass transition temperature of approximately 147 °C allows use at elevated temperatures.
Formula & Notation
IUPAC Name: poly(bisphenol A carbonate)
Other Names / Synonyms: PC; Lexan; Makrolon; bisphenol A polycarbonate
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | ~267 °C |
| Boiling Point | Decomposes |
| Density | 1.20 g/cm³ |
| Molecular Weight | Variable (polymer) |
| Solubility | Insoluble in water |
| Appearance | clear colourless solid |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Polycarbonate (PC) is a thermoplastic polymer containing carbonate groups (–O–CO–O–) in the main chain. The most common type is bisphenol A polycarbonate, produced by polycondensation of bisphenol A with phosgene or diphenyl carbonate. It combines optical clarity with exceptional impact resistance — up to 250 times stronger than glass — while remaining lightweight and easily moulded. Its glass transition temperature of approximately 147 °C allows use at elevated temperatures.
Safety helmets and riot shields. Optical lenses (eyeglasses, camera). CDs and DVDs. Greenhouse glazing and rooflights. Medical devices and equipment. Electronic housings. Automotive headlamp lenses.
Contains bisphenol A (BPA) which may migrate at high temperatures — regulatory restrictions apply for food contact. Susceptible to stress cracking in certain solvents. Releases toxic fumes when burned. Consult SDS before use.
The formula or notation for Polycarbonate is: (C16H14O3)n