Description

9-(Allyloxy)-4,4,15,15-Tetraethoxy-10-[3-(Triethoxysilyl)Propoxy]-3,8,11,16-Tetraoxa-4,15-Disilaoctadecane is a specialized organosilicon compound featuring a unique molecular architecture with multiple reactive ethoxysilyl and allyloxy groups. This structure matters for its ability to act as a sophisticated crosslinking agent and surface modifier, providing enhanced adhesion, durability, and compatibility in advanced material formulations. It is primarily needed by manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in the production of high-performance composites and specialty polymers where precise interfacial engineering is critical.

Application

• Crosslinking Agent for Silicone Polymers: Used to introduce reactive sites and improve the thermal and mechanical properties of silicone-based resins and rubbers.
• Adhesion Promoter in Coatings: Enhances the bonding of paints, primers, and functional coatings to difficult substrates like metals, glass, and plastics.
• Surface Modification of Fillers and Nanoparticles: Imparts organofunctional groups to inorganic surfaces (e.g., silica, glass fibers) to improve dispersion and compatibility in polymer matrices.
• Precursor for Hybrid Organic-Inorganic Materials (ORMOSILs): Serves as a key monomer in sol-gel processes to create materials with tailored optical, mechanical, or barrier properties.
• Reinforcing Additive for Elastomers and Sealants: Improves tensile strength, tear resistance, and chemical stability in high-performance sealing and gasket materials.
• Fiber Sizing and Composite Interphase Modifier: Applied to reinforce the interface between fibers (e.g., carbon, glass) and the polymer resin in composite materials.

Basic Information

Product Name	9-(Allyloxy)-4,4,15,15-Tetraethoxy-10-[3-(Triethoxysilyl)Propoxy]-3,8,11,16-Tetraoxa-4,15-Disilaoctadecane
CAS No.	93777-95-8
Molecular Formula	C30H66O12Si4
Molecular Weight	719.2 g/mol
Synonyms	Bis(triethoxysilylpropyl) PEG Allyl Ether; 3-[2-[3-(Allyloxy)propoxy]ethoxy]propyltriethoxysilane (dimer form); Polyethylene glycol diallyl ether bis(3-triethoxysilylpropyl) acetal; Allyl-PEG-silane crosslinker; Tetraethoxy Disiloxane Allyl Ether Derivative; SCA-APG; Organosilane Crosslinking Agent APG-1
EINECS	Contact for details

Quality Control

Our production of 9-(Allyloxy)-4,4,15,15-Tetraethoxy-10-[3-(Triethoxysilyl)Propoxy]-3,8,11,16-Tetraoxa-4,15-Disilaoctadecane adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing, including assay by NMR and GC, to ensure consistent purity and performance. Certificates of Analysis (COA) documenting identity, purity, and key physical parameters are available upon request, supporting 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 area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen or argon) to prevent hydrolysis and maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Refractive Index (n20D)	1.430 - 1.445
Density (g/mL, 20°C)	1.00 - 1.05
Moisture (KF)	≤ 0.5%

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