Description

1,4-Benzenedicarbonyl Dichloride, Polymer With Carbonic Dichloride And 4,4'-(1-Methylethylidene)Bis[Phenol] is a high-performance polycarbonate copolymer, also known as a poly(ester-carbonate). This material matters for its unique combination of properties derived from its terephthaloyl chloride and bisphenol-A based structure, offering enhanced thermal stability and mechanical strength compared to standard polycarbonates. It is primarily needed by manufacturers in the engineering plastics, specialty films, and high-barrier packaging industries seeking advanced polymer materials.

Application

• Engineering Thermoplastics: Used as a copolymer to enhance the heat resistance, dimensional stability, and mechanical properties of polycarbonate resins for automotive components, electronic housings, and consumer goods.
• Specialty Films and Sheets: Serves as a key raw material for producing high-performance, optically clear films with excellent barrier properties for display applications and protective coatings.
• Advanced Packaging Materials: Employed in the synthesis of high-barrier polymers for food and pharmaceutical packaging that require superior gas and moisture resistance.
• Polymer Blends and Alloys: Acts as a compatibilizer or performance modifier in polymer blends to improve thermal and chemical resistance.
• Optical Components: Utilized in grades requiring high clarity and refractive index for lenses, light guides, and other precision optical parts.
• Flame Retardant Materials: Incorporated into formulations where inherent thermal stability contributes to meeting stringent flame retardancy standards (e.g., UL 94) without significant compromise on mechanical properties.

Basic Information

Product Name	1,4-Benzenedicarbonyl Dichloride, Polymer With Carbonic Dichloride And 4,4'-(1-Methylethylidene)Bis[Phenol]
CAS No.	29896-18-2
Molecular Formula	(C14H12O2·C8H4O2·CCl2O)n
Molecular Weight	Polymer - varies by grade
Synonyms	Poly(ester-carbonate) from Terephthaloyl Chloride and Bisphenol A; Poly(bisphenol A terephthalate-co-carbonate); BPA-Terephthaloyl Chloride-Carbonic Dichloride Copolymer; Polycarbonate-Poly(ethylene terephthalate) Copolymer; PC-PET Copolymer; Aromatic Poly(ester-carbonate); Poly[(bisphenol A carbonate)-co-(bisphenol A terephthalate)]; Terephthaloyl Chloride-Bisphenol A-Carbonic Dichloride Terpolymer
EINECS	Contact for details

Quality Control

Our poly(ester-carbonate) copolymer is manufactured under strict process controls to ensure batch-to-batch consistency. Quality is verified through a comprehensive suite of analytical tests including intrinsic viscosity, thermal analysis (DSC/TGA), and spectroscopic identification. Certificates of Analysis (COA) detailing key parameters such as molecular weight distribution, glass transition temperature (Tg), and residual monomer content are provided with each shipment. We adhere to ISO 9001 quality management standards, and materials can be produced to meet specific customer requirements.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive). Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep the original container tightly sealed when not in use to prevent moisture absorption, which can affect processing and final polymer properties. Store away from strong alkalis and incompatible organic solvents.

Specification

Item	Specification
Appearance	White to off-white pellets or powder
Identification (IR)	Conforms to structure
Intrinsic Viscosity (dl/g)	0.50 - 0.80 (or as per grade)
Glass Transition Temp (Tg)	145 - 165 °C
Moisture Content	≤ 0.1 %
Color (Hazen)	≤ 50 APHA
Residual Chloride	≤ 50 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.