Diphenyl Carbonate
CAS Number: 102-09-0
Diphenyl carbonate (DPC) is the non-phosgene carbonylating monomer for melt-process polycarbonate production. In the Asahi Kasei DPC process, DPC reacts with bisphenol A under melt transesterification to produce optical-quality PC resin without any phosgene or solvent. DPC is produced from dimethyl carbonate and phenol, enabling a fully phosgene-free PC supply chain.
Technical Specifications
| appearance | White crystalline flakes or powder |
| purity (%) | ≥99.9 |
| acidity (ppm) | ≤5 |
| water content (%) | ≤0.05 |
| melting point (°C) | 79–81 |
Applications
- Melt polycarbonate (PC) production via BPA transesterification
- Polycarbonate copolymers for specialty optical and film applications
- Synthesis of polycarbonate-polysiloxane copolymers
- Phosgene-free aliphatic polycarbonate diol synthesis
- Pharmaceutical carbamate intermediate synthesis
Key Features
- Phosgene-free route enables safer PC production facilities with simplified handling
- Ultra-high purity minimizes color formation in optical-grade polycarbonate
- Produces phenol as only by-product, which is recyclable back to DMC–DPC chain
- Compatible with interfacial PC process as drop-in monomer substitute
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CAS Number
102-09-0
Category
Polymer Synthesis ChemicalsAvailability
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