Description

4-Triethoxysilyl-1,1'-Biphenyl is a specialized organosilane coupling agent featuring a biphenyl core. This compound is valued for its ability to act as a molecular bridge, enhancing adhesion between organic polymers and inorganic substrates like glass, metals, and minerals. It is primarily needed by manufacturers in the advanced materials, electronics, and coatings industries seeking to improve composite material performance and durability.

Application

• Surface Modification Agent: Used to functionalize glass fibers, silica, and other mineral fillers to improve compatibility and dispersion in polymer matrices for reinforced composites.
• Adhesion Promoter: A key ingredient in primers and coupling agents for coatings, adhesives, and sealants to enhance bond strength to challenging substrates.
• Electronic Materials: Employed in the formulation of dielectric layers, encapsulants, and underfills in microelectronics and semiconductor packaging.
• Hybrid Material Synthesis: Serves as a precursor in sol-gel processes for creating advanced organic-inorganic hybrid (OIH) materials with tailored properties.
• Liquid Crystal Alignment Layers: Used in the production of alignment layers for liquid crystal displays (LCDs).
• Crosslinking Agent: Can be utilized to introduce crosslinks into silicone and other polymer systems, modifying their thermal and mechanical properties.

Basic Information

Product Name	4-Triethoxysilyl-1,1'-Biphenyl
CAS No.	18056-97-8
Molecular Formula	C20H28O3Si
Molecular Weight	344.52 g/mol
Synonyms	1,1'-Biphenyl-4-triethoxysilane; 4-(Triethoxysilyl)biphenyl; p-Biphenylyltriethoxysilane; [1,1'-Biphenyl]-4-yltriethoxysilane; 4-Biphenylyltriethoxysilane; Biphenyl-4-yltriethoxysilane; (4-Biphenylyl)triethoxysilane; Triethoxy(4-phenylphenyl)silane
EINECS	Contact for details

Quality Control

Our 4-Triethoxysilyl-1,1'-Biphenyl is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including GC, HPLC, and NMR, to ensure high purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to guarantee compliance with your specific application requirements.

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 hygroscopic nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20/D)	1.520 - 1.530
Density (g/mL, 20°C)	1.02 - 1.06

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