Anilino-methyltriethoxysilane (HC-NE8304): Structure, Properties and Applications

   Anilino-methyltriethoxysilane (ND-42) is a special silane-like compound with the molecular formula C₁₁H₁₉NO₃Si.This compound has attracted much attention in the fields of materials science, organic synthesis and biomedicine in recent years due to its unique molecular structure and functional groups. In this paper, we will comprehensively discuss the characteristics of anilino-methyltriethoxysilanes and their research value in terms of molecular structure, chemical properties, potential applications, and synthetic methods.

I. Physical properties

Anilino-methyltriethoxysilane is an organosilicon compound with a unique bifunctional group and has the following physical properties:

II. Molecular structure and chemical properties

The molecular structure of anilino-methyltriethoxysilane consists of the following components:

Silicon atom: The silicon atom, which is the center of the molecule, is connected to different groups through four σ-bonds.

Methyl (-CH₃): Methyl groups are attached to silicon atoms, giving the molecule a certain spatial structure and stability.

Anilino group (-C₆H₄NH₂): anilino group is a nitrogen-containing aromatic group with strong electrophilicity and hydrogen bonding ability.

Three ethoxyl groups (-OCH₂CH₃): three ethoxyl groups are distributed around the silicon atom, giving the molecule good solubility and reactivity.

Intermolecular force

Several intermolecular forces exist between anilino-methyltriethoxysilane molecules as follows:

Van der Waals forces: weak interaction forces between molecules that keep them in a certain molecular arrangement in the liquid or solid state.

Hydrogen bonding: The amino group (-NH₂) in the aniline group can form hydrogen bonds with surrounding hydroxyl or other oxygen-containing groups, thus enhancing intermolecular interactions.

chemical reaction tendency

Anilino-methyltriethoxysilane has the following chemical reaction properties:

Hydrolysis reaction: Due to the low bond energy between silicon atoms and oxygen atoms, hydrolysis reaction is easy to occur under acidic or alkaline conditions, generating silicates and other products.

Oxidation reactions: The amino group in the aniline group is easily oxidized to form imines (-NHOH) or other oxidation products.

Coupling reaction: The aniline group can act as an electrophilic group and participate in coupling reactions with other molecules containing nucleophilic groups to form new composite materials.

Synthesis method

The synthesis of anilino-methyltriethoxysilane usually involves the following steps:

Raw material selection: aniline, methyltriethoxysilane, appropriate catalyst and solvent.

Reaction conditions: Reaction conditions need to be regulated according to the specific reaction mechanism, such as temperature, pressure and reaction time.

Isolation and purification: Separation and purification of the target product by distillation, crystallization or chromatographic techniques.

Bonding of silicon atoms to methyl and ethoxy groups: methyltriethoxysilane was first prepared.

Introduction of aniline groups: aniline groups are introduced around silicon atoms by electrophilic addition or coupling reactions.

Post-treatment and purification: the reaction products were separated and purified to finally obtain anilino-methyl-triethoxysilane.

Ⅲ. Core application areas

High-performance composites

Scenarios: Wind turbine blades, aerospace structural components, automotive lightweight components

Role:

Enhanced interfacial bonding of carbon/glass fibers to epoxy resin with 40% increase in interlaminar shear strength (ILSS);

Reduced composite porosity and extended fatigue life up to 20 years (measured data for wind turbine blades).

Industrial Coatings & Adhesives

Scenario: Marine anticorrosive coatings, electronic encapsulation adhesives, architectural curtain wall adhesives

Performance Enhancement:

Salt spray resistance >3000 hours (ISO 9227), adhesion up to class 5B (ASTM D3359);

Inhibits moisture penetration, with >90% retention of performance after damp heat aging (85°C/85% RH).

Scenario: green tires, oil-resistant seals

Breakthrough effect:

50% improvement in silica dispersion and 18% reduction in rolling resistance (Michelin Energy Saver technology);

Increases wear resistance by 30% and extends tire life to 80,000 km.

Electronic Packaging and High Frequency Materials

Scenario: 5G base station circuit boards, chip packaging adhesive

Technological Advantage:

Dielectric constants as low as 2.8 (10 GHz) and signal transmission losses reduced by 45%;

JEDEC MSL-1 certified to ensure package reliability (humidity sensitivity level optimized).

IV. Security and storage

Anilino-methyltriethoxysilane is a chemically active compound that requires the following precautions during use and storage:

WATERPROOF: The compound is easily hydrolyzed in air to produce silicates and ethanol, leading to the destruction of the molecular structure. Therefore, it should be stored and used in a dry environment.

Antioxidant: The aniline group is easily oxidized to produce unstable intermediates. Therefore, prolonged exposure to air or strong oxidizing agents should be avoided.

SAFE STORAGE: Compounds should be stored in a cool, dry, well-ventilated place away from sources of ignition and strong acids or bases.

V. Summary and outlook

Anilino-methyltriethoxysilane is a multifunctional silane analog, whose unique molecular structure and chemical properties enable it to show broad application prospects in the fields of materials science, biomedicine and organic synthesis. With further research, its potential in the fields of self-repairing materials, drug design and biosensing will be further developed and verified.

VI. Future research directions may include:

Optimization of performance: further improve its chemical stability and reactivity by modulating the molecular structure.

Development of composite materials: Combine them with other functional molecules to prepare composite materials with multifunctionality.

Exploration of biomedical applications: study of their specific applications in drug-targeted delivery and biosensing.

The study of anilino-methyltriethoxysilane not only provides new ideas for the development of silane-based compounds, but also injects new vitality into the innovative development of materials science and biomedical fields.

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