Description

1,3-Bis(Methacryloxy)-2-Trimethylsiloxypropane is a specialized organosilicon crosslinking agent featuring dual methacrylate functionalities. This compound is valued for its ability to enhance the mechanical properties, thermal stability, and adhesion of polymer networks. It is primarily sought by formulators and researchers in the advanced materials sector, particularly for developing high-performance silicones, dental composites, and specialty coatings.

Application

• Silicone Rubber & Resin Crosslinker: A key component for improving the strength, elasticity, and thermal resistance of addition-cure silicone elastomers and resins.
• Dental & Biomedical Materials: Used as a co-monomer in light-curable dental restorative composites and bone cements to enhance durability and biocompatibility.
• Optical & LED Encapsulants: Imparts excellent clarity, UV stability, and weatherability to silicone encapsulants for LEDs and optical devices.
• Adhesives & Sealants: Enhances the bonding performance, flexibility, and chemical resistance of high-end industrial and electronic adhesives.
• Release Coatings & Molding: Employed in the formulation of silicone-based release coatings and precision molding compounds.
• Surface Modification Agent: Used to graft methacrylate functional groups onto various substrates to improve surface properties for further polymerization.

Basic Information

Product Name	1,3-Bis(Methacryloxy)-2-Trimethylsiloxypropane
CAS No.	247244-66-2
Molecular Formula	C16H28O5Si
Molecular Weight	328.48 g/mol
Synonyms	2-Trimethylsiloxy-1,3-propanediol dimethacrylate; 1,3-Dimethacryloxy-2-trimethylsiloxypropane; Bis-MATMS; 2-(Trimethylsiloxy)propane-1,3-diyl bis(2-methylacrylate); Methacryloxypropyl tris(trimethylsiloxy)silane derivative; Crosslinking agent SiMA; TMS-PGMA
EINECS	Contact for details

Quality Control

Our production of 1,3-Bis(Methacryloxy)-2-Trimethylsiloxypropane adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed via advanced chromatographic and spectroscopic methods. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at temperatures between 2°C and 8°C (refrigerated) or as specified on the label. This material is easily oxidized and should be stored under an inert atmosphere (e.g., nitrogen or argon) when possible. Keep away from strong acids and organic solvents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Refractive Index (n20D)	1.450 - 1.455
Density (g/mL, 20°C)	1.00 - 1.05
Water Content (KF)	≤ 0.1%

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