In the fields of polymer modification, surface treatment, and functional coatings, long-chain alkyl silanes are indispensable raw materials. IOTA-12181 n-Octadecyltrichlorosilane (CAS: 112-04-9), with its unique C18 long-chain structure and highly reactive trichlorosilane group, provides a reliable solution for applications such as hydrophobic surface modification, filler treatment, and self-assembled monolayers.

Product Introduction

IOTA-12181 is a high-purity long-chain alkyltrichlorosilane containing reactive Si-Cl bonds. It reacts rapidly with hydroxyl groups on various substrates to form covalently bonded self-assembled monolayers, imparting excellent hydrophobicity, oleophobicity, and interfacial properties to the substrate.

Technical Specifications

Product Features

• Long-chain alkyl structure: C18 chain provides excellent hydrophobicity and flexibility

• High reactivity: Trichlorosilane group reacts rapidly with surface hydroxyl groups on glass, silicon wafers, metal oxides, and other materials

• Self-assembled film formation: Forms ordered monolayers on substrate surfaces

• Precise and controllable: Narrow molecular weight distribution, good batch-to-batch stability

Typical Applications

• Surface hydrophobic modification: Surface treatment of glass, silicon wafers, metals, ceramics, and other materials

• Self-assembled monolayers: Used in microelectronics, MEMS, biosensors, and related fields

• Inorganic filler treatment: Improves dispersion and compatibility of fillers in polymer matrices

• Protective coatings: Builds low-surface-energy coatings for anti-fouling, anti-stick, and water-repellent treatments

• Rubber/plastic modification: Enhances interfacial adhesion in composite materials

Handling and Safety Information

• This product is a chlorosilane that reacts vigorously with water. Handle under dry, inert atmosphere (e.g., nitrogen)

• Reaction releases hydrogen chloride gas; use under adequate ventilation

• Dilute with dry, dedicated solvents; avoid contact with moisture

• Wear appropriate personal protective equipment (gloves, goggles, acid-resistant clothing) during handling

Packaging and Storage

• Store sealed in a cool, dry, well-ventilated area away from humid air

• Packaging specifications can be customized according to customer requirements

Why Choose IOTA-12181?

• High-purity C18 chlorosilane with controllable reaction and uniform film formation

• Comprehensive technical support and customization services

• Stable supply chain to meet both R&D and mass production needs

IOTA-12181 – Providing precise long-chain alkyl modification solutions for your surfaces and interfaces.