Diphenylethyl Methoxysilane Compound for Non-Corrosive High Refractive Index
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Solution Overview
Problem
Existing diphenylethyl-containing organosilicon compounds are either not readily hydrolyzable or generate corrosive hydrogen chloride upon reaction with active hydrogen-containing compounds, posing challenges in their application as surface treating agents and polymer modifiers.
Innovation Solution
Development of an organosilicon compound with a diphenylethyl and methoxysilyl group, synthesized through hydrosilylation of 1,1-diphenylethylene with a hydrogenhalosilane compound, followed by methyl esterification, which is readily hydrolyzable and does not produce corrosive hydrogen chloride.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If diphenylethyl-containing chlorosilane compound is used, then high refractive index is achieved, but corrosive hydrogen chloride is generated
Solution Approach 1:
The invention changes the chemical parameter of the silane compound from chlorosilane to methoxysilane, transforming the reactive group while maintaining the diphenylethyl structure. This parameter change eliminates hydrogen chloride generation during hydrolysis while preserving the high refractive index property through the intact diphenylethyl group.
Solution Approach 2:
The invention converts the harmful chlorosilane group into a beneficial methoxysilane group. The methoxysilane group provides similar chemical reactivity for crosslinking and adhesion but without the harmful byproduct generation, effectively converting a harmful chemical system into a beneficial one.
2Object-generated harmful factors
If diphenylethyl-containing ethoxysilane compound is used, then no hydrogen chloride is generated, but hydrolysis is slow and treatment time is long
Solution Approach 1:
The invention changes the alkoxy group parameter from ethoxy to methoxy. The methoxysilane group has higher hydrolytic reactivity compared to ethoxysilane due to the smaller steric hindrance and electronic effects of the methyl group, thereby accelerating hydrolysis and condensation reactions while maintaining environmental benefits.
3Productivity
If diphenylethyl-containing chlorosilane compound is used, then high reactivity is achieved, but corrosive byproducts are formed
Solution Approach 1:
The invention transforms the harmful chlorosilane system into a beneficial methoxysilane system. The methoxysilane maintains high reactivity for surface treatment and crosslinking applications but produces non-corrosive byproducts, converting a harmful chemical process into a beneficial one.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The resulting organosilicon compound is more hydrolytically sensitive and non-corrosive, imparting a high refractive index to materials without generating hazardous byproducts, enhancing its utility as a surface treating agent and polymer modifier.
Implementation Method 1
The diphenylethyl-containing chlorosilane compound is readily hydrolyzable
Implementation Method 2
when the diphenylethyl-containing organosilicon compound is added to a certain material, the material may be provided with a high refractive index
Data Source
AI summary
An organosilicon compound having diphenylethyl and methoxysilyl groups is more readily hydrolyzable than ethoxysilyl-containing organosilicon compounds and generates no hydrogen chloride on use.