Description

Carbonic acid polymer with [1,1'-biphenyl]-4,4'-diol, 4,4'-cyclohexylidenebis[phenol] and α-[[2-[5-[3-(2-hydroxyphenyl)propyl]-3-[[[3-(2-hydroxyphenyl)propyl]dimethylsilyl]oxy]-1,1,3,5,5-pentamethyltrisiloxanyl]ethyl]dimethylsilyl]-ω-[(trimethylsilyl)oxy] is a specialized, high-performance hybrid polymer engineered for advanced material applications. This compound is significant for its unique combination of aromatic phenolic and siloxane components, which impart exceptional thermal stability, mechanical strength, and processability. It is primarily needed by manufacturers in the electronics, aerospace, and specialty coatings industries seeking to enhance the performance of composite materials and high-temperature resins.

Application

• As a high-performance additive in thermoset and thermoplastic composites for aerospace and automotive components.
• As a key monomer or cross-linking agent in the synthesis of advanced polycarbonates and polyarylates with enhanced heat resistance.
• In the formulation of specialty release coatings and mold-making materials within the silicone industry.
• As a modifier for epoxy resin systems to improve toughness, thermal stability, and adhesion properties.
• For use in electronic encapsulants and underfill materials requiring low stress and high reliability.
• In the development of high-temperature resistant adhesives and sealants for industrial applications.
• As a potential intermediate for liquid crystal polymers (LCPs) and other high-performance engineering plastics.

Basic Information

Item	Details
Product Name	Carbonic acid polymer with [1,1'-biphenyl]-4,4'-diol, 4,4'-cyclohexylidenebis[phenol] and α-[[2-[5-[3-(2-hydroxyphenyl)propyl]-3-[[[3-(2-hydroxyphenyl)propyl]dimethylsilyl]oxy]-1,1,3,5,5-pentamethyltrisiloxanyl]ethyl]dimethylsilyl]-ω-[(trimethylsilyl)oxy]
CAS No.	395681-23-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Bisphenol A/Biphenol Modified Siloxane-Carbonate Copolymer; Poly(carbonate-siloxane) containing biphenol and bisphenol A; Phenolic-modified polysiloxane carbonate; Aromatic polycarbonate-polysiloxane block copolymer; BPA-Biphenol-Siloxane Copolymer; Hybrid polycarbonate siloxane resin; Silicon-containing polycarbonate oligomer
EINECS	Contact for details

Quality Control

Our production of this advanced polymer adheres to a rigorous quality management system. Each batch is characterized using advanced analytical techniques including GPC, NMR, and FT-IR to ensure consistent molecular weight distribution, composition, and functional group integrity. Certificates of Analysis (COA) detailing key specifications such as siloxane content, phenolic OH value, and volatile content are provided with every shipment to guarantee batch-to-batch consistency and performance reliability for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This material is moisture-sensitive; keep the container tightly sealed under an inert atmosphere such as nitrogen or argon to prevent hydrolysis and oxidation. Isolate from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms to structure
Siloxane Content	10 - 25% (w/w)
Phenolic Hydroxyl Value	Contact for details
Weight Average Molecular Weight (Mw)	5,000 - 30,000 g/mol
Glass Transition Temperature (Tg)	> 150 °C
Volatile Content	< 1.0 %
Residual Solvents (GC)	Meets ICH guidelines

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