Cross-Linked Polysulfate Gel for Polar Organic Solvent Adsorption
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Solution Overview
Problem
Existing polymer gel designs face challenges in accurately predicting and stabilizing interactions between polymer chains and polar organic solvent molecules, limiting the rational design of polymer gels for applications like smart materials.
Innovation Solution
A new method involving multifunctional groups is used to synthesize cross-linked polysulfate gels by dissolving TPC-OTBS and TPC-OSO2F in DMF with DBU, forming a polymer gel that interacts with organic solvents through sulfonate and siloxane bonds, without metal ions, achieving high yield and few by-products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional hydrogen bonding, van der Waals forces and electrostatic interactions are used to stabilize polymer gels, then gel formation is achieved, but accurate prediction and control of solvent molecule arrangement and stabilization in the polymer framework remains difficult
Solution Approach 1:
The patent introduces multifunctional groups as intermediary structures that mediate between polymer chains and solvent molecules. These groups act as recognition sites that specifically bind solvent molecules through multiple interaction modes (hydrogen bonding, π-π stacking, van der Waals forces), enabling controlled arrangement and stabilization of solvent molecules within the polymer framework while maintaining gel stability.
2Ease of manufacture
If polymer gel designs focus on oil molecules (non-polar organic solvents), then gel formation is easier, but formation of colloids in polar organic solvents (DMF, DMSO) is rarely achieved due to interaction prediction difficulties
Solution Approach 1:
The patent employs multifunctional groups that can simultaneously engage in multiple types of interactions (hydrogen bonding, π-π stacking, van der Waals forces, electrostatic interactions). This multi-functionality allows the polymer gel to adapt to and stabilize various types of solvent molecules including both non-polar and polar organic solvents, greatly expanding solvent type compatibility while maintaining ease of gel formation.
3Adaptability or versatility
If multifunctional groups are used to prepare cross-linked polysulfate, then new molecular interactions with organic solvents are explored, but the synthesis process becomes more complex
Solution Approach 1:
The patent segments the multifunctional group into distinct functional units (hydroxyl groups, sulfonate groups, siloxane groups) that can independently engage in specific types of interactions with solvent molecules. This segmentation allows for systematic design and prediction of molecular interactions while simplifying the synthesis process by using modular building blocks that can be combined in a controlled manner.
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 method results in a polymer gel with excellent adsorption capacity for organic solvents, forming porous structures with macropores and amorphous polymers, suitable for industrial applications.
Implementation Method 1
Polymer gel is a metastable equilibrium system formed by the interaction between gelling factor and solvent (water or other organic solvent) through hydrogen bonding, π-π stacking or van der Waals force and electrostatic attraction
Implementation Method 2
Polymer gel is a metastable equilibrium system formed by the interaction between gelling factor and solvent (water or other organic solvent) through hydrogen bonding, π-π stacking or van der Waals force and electrostatic attraction
Implementation Method 3
Polymer gel is a metastable equilibrium system formed by the interaction between gelling factor and solvent (water or other organic solvent) through hydrogen bonding, π-π stacking or van der Waals force and electrostatic attraction
Implementation Method 4
Polymer gel is a metastable equilibrium system formed by the interaction between gelling factor and solvent (water or other organic solvent) through hydrogen bonding, π-π stacking or van der Waals force and electrostatic attraction
Implementation Method 5
The present invention also discloses the application of the above polymer gel in adsorbing organic solvents
Data Source
AI summary
Disclosed are a monomer for a polymer gel, a polymer gel and a preparation method therefor. The preparation method includes: reacting 4,4′,4″-trihydroxytriphenylmethane with tert-butyldimethylchlorosilane to obtain TPC-OTBS; reacting 4,4′,4″-trihydroxy triphenylmethane with sulfuryl fluoride in the presence of triethylamine to prepare TPC-OSO2F; and dissolving the TPC-OTBS and TPC-OSO2F in DMF, then adding DBU and ultrasonically dispersing same until uniform, and letting same stand to obtain a polymer gel. The gel obtained by the present invention can selectively adsorb an organic solvent by means of electrostatic interaction and Van der Waals force. The surface and internal morphologies of a solid material are characterized by SEM and TEM, in which the porous morphology of the solid material is found, and most of the pores are macropores.