Description

Methacryloxypropyldimethylmethoxysilane is a bifunctional organosilane coupling agent featuring both a methacrylate group and a hydrolyzable methoxysilyl group. This dual functionality is critical for creating durable chemical bridges between inorganic substrates and organic polymer matrices, significantly enhancing composite material performance. It is an essential raw material for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as for advanced composite and dental material producers seeking to improve adhesion, mechanical strength, and moisture resistance.

Application

• As a coupling agent and adhesion promoter in filled thermoset and thermoplastic composites (e.g., fiberglass, mineral-filled plastics).
• Surface modification of inorganic fillers (silica, alumina, glass) and nanoparticles to improve dispersion and bonding within polymer systems.
• Key component in the formulation of moisture-curable silane-modified polymers (SMP) and hybrid sealants/adhesives.
• Manufacture of dental restorative composites and resin cements to enhance filler-matrix bonding.
• Crosslinking agent and primer for coatings on metals, glass, and concrete to improve corrosion protection and durability.
• Used in the synthesis of specialty silicone resins and as a reactive intermediate for further chemical modifications.

Basic Information

Product Name	Methacryloxypropyldimethylmethoxysilane
CAS No.	66753-64-8
Molecular Formula	C10H20O3Si
Molecular Weight	216.35 g/mol
Synonyms	3-(Methacryloyloxy)propyldimethylmethoxysilane; Dimethylmethoxy[3-(methacryloyloxy)propyl]silane; γ-Methacryloxypropyldimethylmethoxysilane; Methacryloxypropylmethyldimethoxysilane (common alternate); MEMO; MPMDMS; Dow Corning Z-6030 (equivalent); Silane A-174 (related variant); 3-(Trimethoxysilyl)propyl methacrylate (functional analog)
EINECS	266-491-1

Quality Control

Our production of Methacryloxypropyldimethylmethoxysilane adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including Gas Chromatography (GC) and Fourier-Transform Infrared Spectroscopy (FT-IR) to verify identity, assay, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment, ensuring full traceability and compliance with your material 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). Due to its moisture-sensitive (hygroscopic) nature, containers must be kept tightly sealed when not in use to prevent hydrolysis and degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.430 - 1.435
Density (g/mL, 25°C)	0.945 - 0.955

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