Halogen-Substituted Styrene Monomer Synthesis via Phosphoric Acid Catalysis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The high production costs and limited availability of halogen-substituted polymers restrict their extensive application due to the inefficiencies in producing halogen-substituted styrene monomers.
Innovation Solution
A method involving the reaction of a compound represented by Chemical Formula 1 with phosphoric acid in 100 mol % or greater, where Ar is a phenyl group substituted with halogen groups, and L is a substituted or unsubstituted alkylene group, to produce a styrene monomer with excellent thermal and chemical stability, allowing for mass production at a competitive price.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional methods are used to produce halogen-substituted styrene monomers, then the monomers can be produced, but the production costs are significantly high and availability is limited
Solution Approach 1:
The patent changes the reaction parameters by using phosphoric acid as a catalyst instead of conventional catalysts, and by controlling the reaction temperature and molar ratios. This parameter change enables cost-effective mass production of halogen-substituted styrene monomers while maintaining high availability, directly resolving the contradiction between production cost and monomer availability
Solution Approach 2:
The patent introduces phosphoric acid as an intermediary substance that facilitates the reaction between halogen-substituted compounds and styrene. This intermediary catalyst enables the reaction to proceed efficiently at lower costs and higher yields, thereby improving both ease of manufacture and productivity simultaneously
2Ease of manufacture
If halogen-substituted polymers are produced using existing methods, then the polymers can be manufactured, but the production costs are significantly high
Solution Approach 1:
The patent optimizes reaction parameters including using phosphoric acid catalyst, controlling temperature ranges, and adjusting molar ratios to achieve cost-effective production. The method maintains reliable thermal and chemical stability of the resulting polymers by ensuring proper monomer structure through controlled synthesis conditions
Solution Approach 2:
The patent employs phosphoric acid as a inexpensive, readily available catalyst that can be used in large quantities without requiring complex recovery systems. This disposable catalyst approach significantly reduces production costs while maintaining polymer reliability through proper reaction control
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
This method efficiently produces styrene monomers for halogen-substituted polymers with high yield and thermal stability, enabling mass production at a competitive price, thereby overcoming the limitations of existing technologies.
Implementation Method 1
reacting a compound represented by the following Chemical Formula 1 in the presence of phosphoric acid
Data Source
AI summary
The present specification provides a method for preparing a styrene monomer including preparing a styrene monomer of Chemical Formula 2 by reacting a compound represented by Chemical Formula 1 in the presence of phosphoric acid, wherein the phosphoric acid is used in 100 mol % or greater based on 100 mol % of the compound represented by Chemical Formula 1.