Description

(3-Acryloxypropyl)Dimethylmethoxysilane is a bifunctional organosilicon monomer featuring both an acrylate group and a methoxysilane group in its molecular structure. This dual functionality makes it a highly effective coupling agent and reactive intermediate for creating durable chemical bonds between organic polymers and inorganic substrates. It is essential for manufacturers in the coatings, adhesives, and advanced materials sectors seeking to enhance product performance, adhesion, and weather resistance. The compound is supplied with the CAS registry number 111918-90-2.

Application

• Crosslinking Agent for Silicone Resins & Acrylic Polymers: Used to formulate high-performance, weather-resistant coatings and sealants with improved mechanical properties.
• Surface Modification & Primer Formulations: Acts as an adhesion promoter on glass, metals, and minerals for paints, inks, and composite materials.
• Fiber & Filler Treatment: Enhances the compatibility and dispersion of inorganic fillers (like silica, glass fibers) in organic polymer matrices.
• UV-Curable Resin Systems: Serves as a reactive diluent and co-monomer in radiation-curable coatings and inks, contributing to fast curing and low VOC.
• Synthesis of Specialty Silanes: A key intermediate for manufacturing more complex silane coupling agents and functionalized polymers.
• Electronic Encapsulants & Potting Compounds: Improves the adhesion and moisture resistance of protective materials used in electronic components.

Basic Information

Product Name	(3-Acryloxypropyl)Dimethylmethoxysilane
CAS No.	111918-90-2
Molecular Formula	C9H18O3Si
Molecular Weight	202.32 g/mol
Synonyms	3-(Dimethylmethoxysilyl)propyl acrylate; Acrylovoxypropylmethyldimethoxysilane; Dimethylmethoxy(3-acryloxypropyl)silane; Methoxydimethyl(3-acryloxypropyl)silane; γ-Acryloxypropyldimethylmethoxysilane; (3-Acryloxypropyl)methyldimethoxysilane (common naming variant); DMAMOPS; Acrylate-functional methoxysilane
EINECS	Contact for details

Quality Control

Our (3-Acryloxypropyl)Dimethylmethoxysilane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including Gas Chromatography (GC) and FT-IR spectroscopy, to ensure high purity and consistent performance. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and key physical properties is provided with every shipment to guarantee compliance with your technical requirements.

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/59-77°F). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent contact with atmospheric moisture, which can lead to hydrolysis and polymerization. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Refractive Index (n20/D)	1.428 - 1.432
Density (20°C)	0.96 - 0.98 g/mL
Moisture (Karl Fischer)	≤ 0.5%

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