Description

1,4-Bis(2,3-Epoxypropyloxypropyl-Dimethylsilyl)Benzene is a high-purity, specialty organosilicon compound featuring a benzene core symmetrically functionalized with epoxy-terminated siloxane chains. This unique molecular architecture makes it a critical reactive intermediate and cross-linking agent for advanced polymer systems, offering enhanced thermal stability, adhesion, and mechanical properties. It is primarily utilized by R&D and production teams in the electronics, advanced composites, and specialty coatings industries seeking to develop high-performance materials.

Application

• Epoxy Resin Modifier: Acts as a reactive diluent and cross-linker to improve flexibility, thermal shock resistance, and adhesion of epoxy formulations for electronic encapsulants and structural adhesives.
• Silicon-Containing Polymer Synthesis: Serves as a key monomer for synthesizing novel polysiloxanes and silicone-epoxy hybrid polymers with tailored properties.
• Advanced Composite Matrices: Incorporated into the resin matrix of fiber-reinforced composites (e.g., carbon fiber, glass fiber) to enhance interfacial bonding and durability.
• Specialty Coatings & Sealants: Used in formulations for high-temperature, corrosion-resistant, and low-stress coatings where chemical and moisture resistance are paramount.
• Electronic Packaging Materials: Employed in underfills, molding compounds, and dielectric layers for semiconductors due to its low stress and good compatibility.
• Adhesive Promoter: Functions as a coupling agent to improve adhesion between organic polymers and inorganic substrates like glass, metals, and ceramics.

Basic Information

Item	Detail
Product Name	1,4-Bis(2,3-Epoxypropyloxypropyl-Dimethylsilyl)Benzene
CAS No.	18715-54-3
Molecular Formula	C22H36O4Si2
Molecular Weight	420.70 g/mol
Synonyms	1,4-Bis[3-(2,3-epoxypropoxy)propyldimethylsilyl]benzene; Benzene, 1,4-bis[3-(2,3-epoxypropoxy)propyldimethylsilyl]-; p-Bis(2,3-epoxypropyloxypropyldimethylsilyl)benzene; 1,4-Bis(3-glycidoxypropyldimethylsilyl)benzene; Epoxy-functional disiloxane benzene derivative; Glycidoxypropyldimethylsilyl benzene crosslinker; Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our 1,4-Bis(2,3-Epoxypropyloxypropyl-Dimethylsilyl)Benzene is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing including HPLC, GC, and NMR to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting key specifications are available for every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This compound is moisture-sensitive (hygroscopic) and should be kept under an inert atmosphere (e.g., nitrogen) for long-term storage to maintain epoxy group reactivity. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Purity (HPLC/GC)	≥ 97.0%
Epoxy Value	Contact for details
Water Content (KF)	≤ 0.1%
Specific Gravity (25°C)	Contact for details
Refractive Index (n20D)	Contact for details

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