Description

11-(Pentafluorophenoxy)Undecyltriethoxysilane, 95% is a high-purity organosilane coupling agent featuring a reactive triethoxysilane head group and a long-chain undecyl linker terminated with a pentafluorophenoxy moiety. This compound is engineered to create robust, covalent bonds between inorganic substrates and organic polymers, significantly enhancing adhesion, durability, and performance in composite materials. It is essential for manufacturers in the advanced materials, specialty coatings, and electronics industries seeking to improve interfacial properties and long-term stability in demanding environments.

Application

• Surface Modification Agent: Primarily used to functionalize glass, silica, metals, and other inorganic surfaces, imparting specific chemical properties for improved bonding with resins and polymers.
• Adhesion Promoter in Composites: Enhances the interfacial adhesion between fillers (like glass fibers or minerals) and polymer matrices (epoxy, polyurethane, silicone), leading to composites with superior mechanical strength and moisture resistance.
• Specialty Coatings and Inks: Incorporated into formulations to improve coating adhesion to difficult substrates, increase chemical resistance, and provide long-term weatherability.
• Electronics and Semiconductor Packaging: Used in underfill materials, encapsulants, and dielectric layers to improve reliability and prevent delamination in microelectronic devices.
• Chromatography and Solid-Phase Synthesis: Serves as a sophisticated linker or stationary phase modifier in HPLC columns and solid supports for peptide or oligonucleotide synthesis, leveraging its fluorinated aromatic group.
• Hydrophobic and Oleophobic Treatments: Creates low-surface-energy coatings on textiles, ceramics, and optical components for water and oil repellency.

Basic Information

Item	Detail
Product Name	11-(Pentafluorophenoxy)Undecyltriethoxysilane, 95%
CAS No.	1197981-13-7
Molecular Formula	C23H37F5O4Si
Molecular Weight	500.62 g/mol
Synonyms	11-(Pentafluorophenoxy)undecyl triethoxysilane; (11-(Pentafluorophenoxy)undecyl)triethoxysilane; Triethoxy(11-(pentafluorophenoxy)undecyl)silane; Undecyltriethoxysilane, 11-(pentafluorophenoxy)-; Pentafluorophenoxyundecyltriethoxysilane; Silane coupling agent PFPh-UTES; PFPh-UTES; CAS 1197981-13-7
EINECS	Contact for details

Quality Control

Our production of 11-(Pentafluorophenoxy)Undecyltriethoxysilane adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including NMR (¹H, ¹³C, ²⁹Si), FT-IR, and HPLC, to verify chemical identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with each shipment, ensuring full traceability and compliance with your material specifications and quality assurance requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at 15-25°C. This material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (Karl Fischer)	≤ 0.5%

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