Description

Methacryloxymethyltrimethoxysilane is a bifunctional organosilicon monomer featuring both a polymerizable methacrylate group and hydrolyzable methoxysilane groups. This unique structure makes it a critical coupling agent and adhesion promoter, bridging organic polymers with inorganic substrates. It is essential for manufacturers in the coatings, adhesives, and advanced composites industries seeking to enhance durability, chemical resistance, and interfacial bonding strength in their products.

Application

• As a key silane coupling agent in fiberglass-reinforced plastics and mineral-filled composites to improve mechanical properties and moisture resistance.
• As an adhesion promoter in primers, sealants, and structural adhesives for glass, metals, and masonry.
• For the surface modification of silica, alumina, and other inorganic fillers to improve dispersion and compatibility in polymer matrices.
• In the synthesis of hybrid organic-inorganic materials (ORMOSILs) for advanced coatings with enhanced hardness and weatherability.
• As a crosslinking agent or co-monomer in moisture-curable silicone-modified acrylic resins and sealants.
• In the production of dental composites and restorative materials to improve filler-matrix bonding.

Basic Information

Product Name	Methacryloxymethyltrimethoxysilane
CAS No.	54586-78-6
Molecular Formula	C9H20O5Si
Molecular Weight	236.34 g/mol
Synonyms	3-(Methacryloyloxy)propyltrimethoxysilane (common misnomer); (3-Methacryloxypropyl)trimethoxysilane; Methacryloxypropyltrimethoxysilane; MPTMS; MEMO; Silane A-174; γ-Methacryloxypropyltrimethoxysilane; Trimethoxy(3-(methacryloyloxy)propyl)silane
EINECS	259-264-7

Quality Control

Our Methacryloxymethyltrimethoxysilane is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including GC and FTIR, to ensure consistent purity and performance. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided with each 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). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent hydrolysis and polymerization upon contact with atmospheric moisture.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Refractive Index (n20D)	1.428 - 1.432
Density (20°C)	1.040 - 1.050 g/cm³

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