Coordination Complexes for Homogeneous Metallic Doping in Polymers
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Solution Overview
Problem
Existing methods for producing polymeric materials doped with metallic elements face challenges such as non-homogeneous distribution of metallic elements and low incorporation rates due to instability of metallic complexes in aqueous and polymerization media, leading to inefficient doping and low titanium content in final materials.
Innovation Solution
Development of stable coordination complexes comprising metallic elements like titanium, zirconium, and aromatic monomers with ethylenic, hydroxide, and oxime groups, which form stable bonds and can be polymerized to achieve high doping rates and controlled distribution of metallic elements in polymeric materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If impregnation of polymeric materials with metallic salt solutions is used, then metallic element distribution is achieved, but homogeneous distribution at atomic level cannot be obtained due to crystallization phenomena
Solution Approach 1:
The patent changes the chemical parameters by using coordination complexes with specific ligands (oxime and hydroxyl groups) that prevent crystallization of metallic salts during drying, thereby achieving homogeneous atomic-level distribution while maintaining high metallic element content
Solution Approach 2:
The patent introduces coordination complexes as intermediaries between the polymeric material and metallic elements. These complexes act as mediators that prevent direct crystallization of metallic salts while enabling uniform distribution throughout the polymer matrix
2Productivity
If titanium complex is used in polymerization medium, then polymerization can proceed, but the complex is unstable in aqueous medium resulting in low titanium incorporation
Solution Approach 1:
The patent changes the chemical stability parameters by designing ligands with specific functional groups (oxime and hydroxyl) that form stable coordination bonds with titanium, preventing degradation during both storage in aqueous medium and polymerization processes
Solution Approach 2:
The patent creates a composite coordination complex structure combining titanium with organic ligands containing oxime and hydroxyl groups, resulting in a stable compound that maintains integrity in aqueous environments while enabling effective polymerization
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 solution enables the production of polymeric materials with high metallic element content and uniform distribution, suitable for applications in laser targets, catalysis, and ion-imprinted materials, with titanium content exceeding 20% by mass and specific surface areas up to 880 m²/g.
Implementation Method 1
coordination complexes comprising metallic elements... with at least one aromatic monomer... which ring comprising at least one ethylenic group, at least one hydroxide -OH group, at least one oxime group
Implementation Method 2
polymerization of said complexes... process for preparing a polymeric material doped with at least one metallic element comprising a step of polymerization
Data Source
AI summary
The present invention relates to coordination complexes of at least one metal element having at least one aromatic monomer including at least one aromatic cycle, said cycle including at least one ethylene group, at least one hydroxide group -OH, at least one oxime group and the salts thereof, said metal element being in the form of a metal alkoxide.