Description

Siloxanes And Silicones, Di-Me, Polymers With Bisphenol A is a specialized organosilicon copolymer that combines the thermal stability and flexibility of polydimethylsiloxane (PDMS) with the structural rigidity and high-performance characteristics of bisphenol A. This unique hybrid polymer is engineered to deliver enhanced mechanical properties and chemical resistance compared to standard silicones. It is a critical material for formulators and manufacturers in advanced industries requiring durable, high-temperature elastomers, adhesives, and coatings with superior performance.

Application

• High-Temperature Resistant Sealants & Adhesives: Used in aerospace, automotive, and industrial gasketing where long-term thermal and oxidative stability is required.
• Advanced Polymer Modification: Acts as an impact modifier and compatibilizer in engineering thermoplastics and epoxy resin systems to improve toughness and flexibility.
• Protective & Release Coatings: Formulated into durable, non-stick coatings for molds, industrial machinery, and cookware that demand repeated high-heat cycles.
• Electronic Encapsulants & Potting Compounds: Provides excellent electrical insulation and environmental protection for sensitive components in harsh operating conditions.
• Specialty Elastomers: Serves as a base polymer for silicone rubbers requiring enhanced tensile strength, tear resistance, and adhesion to substrates.

Basic Information

Product Name	Siloxanes And Silicones, Di-Me, Polymers With Bisphenol A
CAS No.	68440-77-7
Molecular Formula	(C2H6OSi)n·(C15H16O2)m
Molecular Weight	Varies (Polymer)
Synonyms	Bisphenol A Polydimethylsiloxane; BPA-PDMS Copolymer; Dimethylsiloxane-Bisphenol A Copolymer; Poly(dimethylsiloxane-co-bisphenol A); Silicone-Bisphenol A Resin; Organomodified Siloxane with Bisphenol A; PDMS-BPA Block Copolymer; CAS 68440-77-7
EINECS	Contact for details

Quality Control

Our production of Siloxanes And Silicones, Di-Me, Polymers With Bisphenol A adheres to a stringent quality management system. Each batch is characterized for critical parameters including molecular weight distribution, viscosity, hydroxyl value, and thermal stability to ensure consistent performance in demanding applications. Certificates of Analysis (COA) documenting these specifications are provided with every shipment. We support compliance with relevant global regulatory frameworks, including REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (typically 15-25°C). Keep away from strong acids, bases, and oxidizing agents. Under these conditions, the product is stable for extended periods.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid or solid
Identification (IR)	Complies
Viscosity (25°C)	Specified Grade Dependent (cSt)
Molecular Weight (GPC)	Specified Grade Dependent
Hydroxyl Value	Specified Grade Dependent (mg KOH/g)
Volatile Content	≤ 1.0%
Ash Content	≤ 0.1%

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