Description

[11-(2-Bromo-2-Methyl)Propionyloxy]Undecyltrichlorosilane is a specialized bifunctional organosilane coupling agent that combines a reactive trichlorosilane anchor with a polymerizable bromoester group. This unique molecular architecture is critical for creating durable covalent bonds between inorganic substrates and organic polymer matrices. It is essential for R&D scientists and production engineers in advanced materials sectors who require precise surface modification to enhance adhesion, compatibility, and functional performance.

Application

• Surface Priming Agent: Used to functionalize glass, silicon, metals, and metal oxides for subsequent polymer grafting or thin-film deposition.
• Polymer Hybrid Materials: Serves as a key monomer or cross-linker in the synthesis of silicone-based copolymers and hybrid organic-inorganic networks.
• Adhesion Promotion: Improves the bond strength and durability of coatings, adhesives, and sealants on challenging substrates.
• Controlled Radical Polymerization: The bromoester moiety acts as an initiator or chain transfer agent in Atom Transfer Radical Polymerization (ATRP) for creating well-defined polymer brushes.
• Biomaterial Functionalization: Modifies surfaces of medical devices or diagnostic platforms to enable controlled biomolecule immobilization.
• Nanocomposite Fabrication: Enhances the dispersion and interfacial bonding of nanoparticles within polymer hosts.
• Chromatography Media: Used in the derivatization of silica supports for specialized separation columns.
• Corrosion-Resistant Coatings: Forms part of protective silane-based pretreatment layers for metals.

Basic Information

Product Name	[11-(2-Bromo-2-Methyl)Propionyloxy]Undecyltrichlorosilane
CAS No.	255727-67-4
Molecular Formula	C17H32BrCl3O2Si
Molecular Weight	482.78 g/mol
Synonyms	11-[(2-Bromo-2-methylpropanoyl)oxy]undecyltrichlorosilane; 2-Bromo-2-methylpropionic acid 11-(trichlorosilyl)undecyl ester; Undecyltrichlorosilane, 11-[(2-bromo-2-methyl-1-oxopropoxy)]-; ATRP Initiator-functional Trichlorosilane; Bromoisobutyrate-terminated Trichlorosilane; ω-(2-Bromo-2-methylpropionyloxy)undecyltrichlorosilane; Silane coupling agent, bromoester-terminated
EINECS	Contact for details

Quality Control

Every batch of [11-(2-Bromo-2-Methyl)Propionyloxy]Undecyltrichlorosilane is manufactured and analyzed under strict quality management protocols to ensure consistency and reliability for sensitive applications. Our standard quality commitment includes comprehensive testing for identity, purity, and functional integrity. Certificates of Analysis (COA) detailing specific batch results are available upon request, providing full traceability and supporting your quality assurance processes.

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). Due to its moisture-sensitive (hygroscopic) nature, containers must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC or HPLC)	≥ 95% (Typical 97-99%)
Chlorine Content	Conforms to theoretical
Bromine Content	Conforms to theoretical
Density (at 20°C)	~1.25 g/mL
Refractive Index (n20D)	~1.470

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