Description

Methacryl Trisepoxy Cyclosiloxane CAS NO 921214-21-3 is a specialized organosilicon compound featuring a unique cyclosiloxane backbone functionalized with both methacryl and multiple epoxy groups. This dual functionality makes it a highly valuable crosslinking agent and reactive intermediate for creating advanced polymer networks with tailored thermal and mechanical properties. It is essential for manufacturers in the electronics, advanced coatings, and high-performance adhesives sectors seeking to enhance material durability and performance.

Application

• Advanced Epoxy Resin Modifier: Imparts flexibility, adhesion, and thermal shock resistance to rigid epoxy systems for electronic encapsulants and structural composites.
• UV-Curable Coating Formulations: Serves as a reactive diluent and crosslinker to improve cure speed, surface hardness, and chemical resistance in coatings for optical fibers and displays.
• Silicone Hybrid Material Synthesis: Key building block for creating silicone-epoxy or silicone-acrylate hybrid polymers with enhanced weatherability and low dielectric constants.
• Adhesive and Sealant Formulations: Enhances bonding strength, moisture resistance, and thermal stability in high-performance adhesives for aerospace and automotive applications.
• Lithography and Photoresists: Used in the development of specialized photoresist materials for microelectronics fabrication due to its photocurable nature.
• Fiber Reinforced Plastic (FRP) Manufacturing: Improves the interfacial adhesion between the resin matrix and glass/carbon fibers in composite materials.

Basic Information

Product Name	Methacryl Trisepoxy Cyclosiloxane
CAS No.	921214-21-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Tris(2,3-epoxypropyl) Methacryloxypropyl Cyclotrisiloxane; Methacryloxypropyl Tris(2,3-epoxypropyl) Cyclotrisiloxane; 2,4,6-Tris[3-(2,3-epoxypropoxy)propyl]-2,4,6-trimethylcyclotrisiloxane; Epoxy-functional Methacryl Cyclosiloxane; MTCS-Epoxy; Reactive Epoxy Siloxane; Cyclic Siloxane Methacrylate Epoxide
EINECS	Contact for details

Quality Control

Our Methacryl Trisepoxy Cyclosiloxane is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and FT-IR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specific batch results are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C) under an inert atmosphere (e.g., nitrogen or argon) to prevent oxidation and moisture absorption. Keep away from heat sources and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Epoxy Value	Contact for details
Viscosity (25°C)	Contact for details
Specific Gravity (25°C)	Contact for details
Refractive Index (n20D)	Contact for details

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