Crosslinked Polymer-Inorganic Beads for Optical Isomer Separation
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Solution Overview
Problem
Conventional chromatography fillers for optical isomers face limitations in separating large amounts due to limited polymer compound derivative loading on inorganic carriers, and organic-based fillers lack mechanical strength and solvent stability.
Innovation Solution
A three-dimensionally crosslinked complex is developed, where polymer compound derivatives are modified with specific silane compounds and reacted with inorganic substances, forming a bead structure that enhances mechanical strength and solvent resistance, allowing for increased loading and efficient separation of optical isomers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If an inorganic carrier is used to carry polymer compound derivative by physical adsorption, then the filler can be used in conventional chromatography, but the amount of polymer compound derivative that can be carried is limited and only surface molecules contribute to optical resolution
Solution Approach 1:
The patent creates a composite material where polymer compound derivative and inorganic carrier are chemically bonded together. This chemical bonding ensures the polymer remains firmly attached to the carrier, allowing increased loading amounts while maintaining optical resolution efficiency, as both surface and internal polymer molecules contribute to separation.
Solution Approach 2:
The patent modifies the local quality of the polymer-carrier interface by introducing chemical bonding groups. This allows the polymer to be anchored at specific sites on the inorganic carrier surface, creating stable attachment points that prevent polymer loss while maximizing the active polymer content for optical resolution.
2Productivity
If only polymer compound derivative is used as separating agent, then larger amounts of optical isomers can be separated in one stroke, but the mechanical strength is low and use under high pressures is restricted
Solution Approach 1:
The patent combines polymer compound derivative with inorganic carrier through chemical bonding to create a composite material. This composite structure provides the mechanical strength of the inorganic carrier while maintaining the high optical resolution efficiency of the polymer, enabling separation of large amounts of optical isomers under high pressure conditions.
Solution Approach 2:
The patent utilizes the porous structure of the inorganic carrier to increase the surface area available for polymer attachment. This porous architecture allows more polymer to be loaded while maintaining structural integrity, facilitating high-capacity separation with adequate mechanical strength.
3Strength
If inorganic carrier is used to carry polymer compound derivative, then mechanical strength is improved, but solvents that dissolve the polymer compound cannot be used as mobile phase
Solution Approach 1:
The patent creates a chemically bonded composite where the polymer is covalently attached to the inorganic carrier. This strong chemical bonding prevents polymer dissolution or detachment even when solvents that would normally dissolve the polymer are used, thus expanding solvent selection flexibility while maintaining mechanical strength.
Solution Approach 2:
The patent employs a robust composite structure that is highly resistant to solvent degradation. This durability allows the use of aggressive solvents that would otherwise compromise the filler structure, effectively making the filler suitable for a broader range of chromatographic conditions without sacrificing mechanical integrity.
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 complex enables high-performance separation of large amounts of optical isomers with improved mechanical strength and solvent stability, facilitating efficient analysis and fractionation.
Implementation Method 1
a polymer compound derivative obtained by modifying part of the hydroxy or amino groups of a polymer compound having the hydroxy or amino groups with a compound represented by general formula (I) and one or more kinds of compounds represented by general formulae (II) to (V) are caused to react with each other
Implementation Method 2
mainly an inorganic carrier is caused to carry the polymer compound derivative on itself by physical adsorption
Data Source
AI summary
Provided is a complex obtained by reacting a polymer compound derivative obtained by modifying part of the hydroxy groups or amino groups of a polymer compound having the hydroxy groups or amino groups with a compound represented by the following general formula (I) with one or more kinds of compounds represented by the following general formulae (II) to (V): (I) A-X—Si(Y)nR3-n; (II) M(OR1)nR24-n; (III) Al(OR1)pR23-p; (IV) Mg(OR1)qR22-q; and (V) [Si(OR3)nR43-n]—(X)—[Si(OR5)nR63-n].