Description

1,3-Bis[(Acryloxymethyl)Phenethyl]Tetramethyldisiloxane is a specialized organosilicon monomer featuring dual acrylate and phenethyl functionalities. This compound is engineered to act as a high-performance crosslinking agent, enhancing the thermal stability, mechanical strength, and adhesion properties of polymer networks. It is essential for manufacturers in the advanced materials sector seeking to develop durable, high-performance coatings, adhesives, and specialty resins. The product is supplied with full traceability and quality documentation.

Application

• UV-Curable Coatings & Inks: As a reactive diluent and crosslinker to improve cure speed, hardness, and chemical resistance in industrial and graphic arts applications.
• High-Performance Adhesives & Sealants: To enhance bond strength, flexibility, and environmental durability in automotive, aerospace, and construction assemblies.
• Specialty Silicone Polymers: As a key monomer for synthesizing modified polysiloxanes with tailored properties for release liners, pressure-sensitive adhesives, and medical-grade elastomers.
• Optical & Electronic Encapsulants: In formulations for potting and protecting sensitive electronic components and optical fibers, leveraging its stability and adhesion.
• Dental & Biomedical Composites: As a crosslinking component in light-curable resin systems for restorative materials, offering improved biocompatibility and mechanical performance.
• 3D Printing Resins: To increase the toughness and heat deflection temperature of photopolymer resins used in stereolithography (SLA) and digital light processing (DLP).

Basic Information

Product Name	1,3-Bis[(Acryloxymethyl)Phenethyl]Tetramethyldisiloxane
CAS No.	140220-31-1
Molecular Formula	C28H38O4Si2
Molecular Weight	510.78 g/mol
Synonyms	1,3-Bis[(2-acryloyloxyethyl)phenethyl]tetramethyldisiloxane; Bis(acryloxymethylphenethyl)tetramethyldisiloxane; Acrylated Phenethyl Siloxane; Tetramethyl-1,3-bis[(acryloxymethyl)phenethyl]disiloxane; Silane monomer, bis(acryloyloxymethylphenethyl)tetramethyl-; 1,3-Bis(2-(acryloyloxy)ethylphenethyl)tetramethyldisiloxane; Phenethyl acrylate functional disiloxane
EINECS	Contact for details

Quality Control

Our 1,3-Bis[(Acryloxymethyl)Phenethyl]Tetramethyldisiloxane is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including chromatographic purity analysis and functional group verification, to ensure consistent performance and reliability for your formulations. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and key physical parameters is provided with each shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at temperatures between 15-25°C (59-77°F). This material is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). For long-term storage, consider using an inert gas blanket (e.g., nitrogen or argon) to maintain product integrity. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, Colorless to Pale Yellow Liquid
Identification (IR)	Conforms to Reference Spectrum
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.1%
Refractive Index (n20D)	1.490 - 1.510
Density (20°C)	1.05 - 1.10 g/cm³
Viscosity (25°C)	Contact for details

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