Description

(3-Methacryloyloxypropyl)Trichlorosilane is a bifunctional organosilicon compound that serves as a critical coupling agent and surface modifier. Its unique structure, featuring both a polymerizable methacrylate group and a highly reactive trichlorosilane moiety, enables it to form durable bonds between inorganic substrates and organic polymers. This product is essential for manufacturers in the composites, coatings, and adhesives industries seeking to enhance material performance through improved interfacial adhesion and surface properties.

Application

• Surface Priming for Adhesion Promotion: Used as a primer or adhesion promoter on glass, silica, metals, and other inorganic surfaces to improve bonding with acrylic resins, epoxy systems, and other polymer matrices.
• Filler and Fiber Treatment: A key silane coupling agent for the surface modification of mineral fillers (e.g., silica, clay) and reinforcing fibers (e.g., glass, carbon) to enhance dispersion and interfacial strength in composite materials.
• Synthesis of Hybrid Organic-Inorganic Materials: Employed as a monomer in sol-gel processes to create silane-based cross-linked networks, hybrid coatings, and dental restorative materials with tailored mechanical properties.
• Manufacture of Specialty Silicones: Acts as a functional intermediate in the production of methacrylate-functionalized silicone oils, resins, and oligomers for release coatings, pressure-sensitive adhesives, and UV-curable systems.
• Biomaterial and Sensor Fabrication: Utilized to create functionalized surfaces for the immobilization of biomolecules, cells, or nanoparticles in biosensor and diagnostic device development.

Basic Information

Product Name	(3-Methacryloyloxypropyl)Trichlorosilane
CAS No.	7351-61-3
Molecular Formula	C7H11Cl3O2Si
Molecular Weight	261.60 g/mol
Synonyms	3-(Trimethoxysilyl)propyl methacrylate; γ-Methacryloxypropyltrichlorosilane; MPTMS; 3-(Methacryloyloxy)propyltrichlorosilane; Trichloro[3-(methacryloyloxy)propyl]silane; Silane A-174; KH-570; Methacryloxypropyltrichlorosilane
EINECS	230-904-1

Quality Control

Our production of (3-Methacryloyloxypropyl)Trichlorosilane adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including Gas Chromatography (GC) for purity and assay, FT-IR for identification, and Karl Fischer titration for moisture content. Certificates of Analysis (COA) documenting all test results are provided to ensure traceability and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at temperatures between 2°C and 8°C (refrigerated) or as specified for the specific grade. Due to its highly volatile and hygroscopic nature, containers must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and hydrolysis. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases, acids, and oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 25°C)	1.10 - 1.15 g/mL
Refractive Index (n20D)	1.435 - 1.445
Water Content (Karl Fischer)	≤ 0.5%

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