Description

2-(Trimethylsiloxy)Ethyl Methacrylate is a specialized organosilicon methacrylate monomer, a key building block for introducing silyl ether functionality into polymer chains. This compound matters for its ability to impart unique properties such as improved adhesion, moisture resistance, and surface modification to advanced materials. It is primarily needed by manufacturers in the silicone resin, pressure-sensitive adhesive, and advanced coating industries seeking to enhance product performance and durability.

Application

• Silicone Resin Modification: Used as a co-monomer to incorporate methacrylate functionality into silicone polymers, improving compatibility with organic matrices and enhancing film-forming properties.
• Pressure-Sensitive Adhesives (PSAs): Imparts excellent tack, peel strength, and aging resistance, particularly in applications requiring adhesion to low-surface-energy substrates.
• UV-Curable Coatings & Inks: Serves as a reactive diluent and crosslinking agent in radiation-curable formulations, contributing to fast cure speeds, hardness, and chemical resistance.
• Surface Treatment Agents: Acts as a coupling agent or surface modifier for fillers, fibers, and nanoparticles to improve dispersion and interfacial bonding in composite materials.
• Hydrophobic Coatings: Utilized to create water-repellent and anti-fouling surface coatings for textiles, optics, and construction materials.
• Dental & Biomedical Materials: Incorporated into resin composites and bone cements to modify hydrophobicity, mechanical strength, and biocompatibility.
• Release Liners: A key component in silicone release coatings for labels, tapes, and graphic films.
• Electronic Encapsulants: Used in formulations for potting and protecting electronic components due to its good dielectric properties and moisture resistance.

Basic Information

Product Name	2-(Trimethylsiloxy)Ethyl Methacrylate
CAS No.	17407-09-9
Molecular Formula	C9H18O3Si
Molecular Weight	202.32 g/mol
Synonyms	2-(Trimethylsilyloxy)ethyl methacrylate; Methacryloxyethyl Trimethyl Silane; 2-Methacryloyloxyethyl Trimethylsilane; 2-[(Trimethylsilyl)oxy]ethyl 2-methyl-2-propenoate; 2-Hydroxyethyl methacrylate trimethylsilyl ether; TMS-HEMA; Trimethylsilyl 2-hydroxyethyl methacrylate; β-(Trimethylsiloxy)ethyl methacrylate
EINECS	241-426-9

Quality Control

Our 2-(Trimethylsiloxy)Ethyl Methacrylate is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including GC and HPLC analysis, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing purity, identity, and key physical properties are provided with every shipment to guarantee compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 2°C and 8°C (refrigerated) or as specified on the label. This product is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). Keep away from heat, sparks, and open flame. For long-term storage, consider under an inert gas atmosphere such as nitrogen or argon to prevent polymerization and oxidation.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.1%
Acid Value	≤ 1.0 mg KOH/g
Refractive Index (n20/D)	1.428 - 1.432
Density (20°C)	0.94 - 0.98 g/mL
Inhibitor (MEHQ)	50 - 150 ppm

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