Carbonic acid, diphenyl ester, polymer with 4,4'-(1-methylethylidene)bis(phenol)
CAS: 25929-04-8
Category: Organic Intermediates
| Purity | Industrial Grade; Optical Grade; Medical Grade (low volatile impurities) |
| Molecular Formula | (C16H14O3)n |
| Molecular Weight | Polymer (typical Mw 20000–80000 g/mol, grade depen |
| Appearance | Colorless transparent pellets or white granular resin |
| Packaging | 1 kg sample bag, 5 kg bag, 25 kg moisture-proof paper bag with polyethylene liner, or 500–1000 kg bulk bag |
| Testing Indicators | Appearance — Visual inspection; Identification — FTIR spectroscopy; Melt Flow Index (MFI) — ASTM D1238 / ISO 1133; Molecular weight distribution — Gel Permeation Chromatography (GPC); Moisture content — Karl Fischer titration; Density — ASTM D792; Light transmittance and haze — ASTM D1003; Yellowness Index — ASTM E313; Thermal properties — DSC and TGA; Mechanical properties — Tensile testing (ASTM D638), Flexural testing (ASTM D790), Izod impact strength (ASTM D256); Residual volatiles — GC; Ash content — ASTM D5630. |
| Storage Notes | Store in a cool, dry, well-ventilated warehouse away from direct sunlight, moisture, and sources of heat. Keep containers tightly sealed. Protect pellets from contamination and excessive humidity before processing. Recommended storage temperature below 35°C. |
| Lead Time | 10 days |
A high-performance bisphenol A polycarbonate resin widely used in engineering plastics, optical components, medical devices, electrical and electronic housings, automotive parts, laboratory equipment, consumer products, and extrusion or injection molding applications. It is valued for its excellent impact resistance, transparency, dimensional stability, and heat resistance.