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3‑(Diethoxy(methyl)silyl)propyl Methacrylate (MPTMS‑Me)

CAS No.:65100-04-1
Product Grade: Industrial Grade
Purity / Assay: ≥95.0%
Molecular Formula:C₁₂H₂₄O₄Si
Molecular Weight:260.40 g/mol
Synonym(s):methacryloxypropyl methyldiethoxysilane, MPTMS-Me, 3-methacryloxypropyl methyldiethoxysilane

3-(Diethoxy(methyl)silyl)propyl Methacrylate, identified by CAS 65100-04-1, is a versatile organosilane monomer featuring both a reactive methacrylate group and a hydrolyzable diethoxymethylsilyl moiety. This bifunctional structure allows the molecule to bridge the gap between organic polymers and inorganic substrates, facilitating the development of high-performance composite materials. As a clear, colorless liquid, it is valued for its ability to enhance interfacial adhesion and improve the mechanical properties of various resin systems.

In industrial and research settings, this chemical is primarily utilized as a coupling agent and surface modifier. Its specific chemical architecture, characterized by two ethoxy groups and a methyl group on the silicon atom, offers a controlled rate of hydrolysis compared to trialkoxysilanes. This makes it particularly suitable for applications where moderate reactivity or specific crosslinking densities are required. Proper handling involves protection from moisture to prevent premature hydrolysis and polymerization.

• As a high-efficiency coupling agent, this compound is extensively used to improve the bonding strength between inorganic fillers, such as silica, glass fibers, or metal oxides, and organic polymer matrices. By creating a stable chemical bridge, it significantly enhances the tensile strength, flexural modulus, and moisture resistance of composite materials used in automotive and aerospace components.

• In the coatings and adhesives industry, 3-(Diethoxy(methyl)silyl)propyl Methacrylate serves as a vital adhesion promoter. It is incorporated into UV-curable or thermosetting formulations to ensure robust attachment to difficult substrates like glass and ceramics. Its methacrylate functionality allows for seamless integration into acrylic or vinyl-based resin systems during the curing process, resulting in superior durability and chemical resistance.

• The material is frequently employed in the synthesis of silane-modified polymers and specialty resins. By grafting the silyl functionality onto polymer backbones, manufacturers can produce moisture-curable systems that exhibit excellent weatherability and thermal stability. This application is particularly relevant for high-performance sealants and dental restorative materials where precision and long-term reliability are paramount.

• It acts as a surface treatment agent for pigments and mineral fillers to improve their dispersibility within organic mediums. This modification reduces the viscosity of filled systems, allowing for higher loading levels without compromising processability. The presence of the methyl group on the silicon atom provides a degree of hydrophobicity, which helps in protecting the inorganic interface from hydrolytic degradation in harsh environments.

25kg/bag, 180kg/drum, IBC Drum
CAS No.: 65100-04-1

Product Name: 3‑(Diethoxy(methyl)silyl)propyl Methacrylate (MPTMS‑Me)

Purity / Assay:≥95.0%
Molecular Formula:C₁₂H₂₄O₄Si
Molecular Weight:260.40 g/mol
EINECS No.:800-443-7
Synonym(s):methacryloxypropyl methyldiethoxysilane, MPTMS-Me, 3-methacryloxypropyl methyldiethoxysilane

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