Conjugated Polymer Synthesis via Dual Catalyst System
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Solution Overview
Problem
Current methods for producing conjugated polymers using transition metal complex catalysts fail to achieve sufficiently high molecular weights, especially for thermally and/or chemically unstable monomers.
Innovation Solution
A method involving the combination of homogeneous and heterogeneous transition metal complex catalysts in coupling reactions to polymerize monomers, enhancing molecular weight and reaction efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If homogeneous transition metal complex catalysts are used for coupling reaction of monomers, then the reaction proceeds with high activity, but the molecular weight of the resulting conjugated polymer is insufficient
Solution Approach 1:
The invention combines homogeneous transition metal complex catalysts (providing high reaction activity) with heterogeneous transition metal complex catalysts (providing high molecular weight) into a dual-catalyst system. This merging allows the reaction to simultaneously achieve both high productivity and high molecular weight conjugated polymers, resolving the contradiction between reaction activity and polymer molecular weight
2Quantity of substance
If heterogeneous transition metal complex catalysts are used for coupling reaction of monomers, then the molecular weight of the resulting conjugated polymer increases, but the reaction activity decreases
Solution Approach 1:
The invention merges heterogeneous transition metal complex catalysts (which provide high molecular weight) with homogeneous transition metal complex catalysts (which provide high reaction activity). The heterogeneous catalyst ensures high molecular weight while the homogeneous catalyst maintains high reaction activity, thus resolving the contradiction between molecular weight and reaction activity
3Manufacturing precision
If thermally and/or chemically unstable monomers are used in coupling reaction, then the desired polymer structure can be formed, but the molecular weight achieved is insufficient
Solution Approach 1:
The invention uses a combined catalyst system where heterogeneous transition metal complex catalysts promote high molecular weight formation while homogeneous transition metal complex catalysts ensure proper polymer structure formation. This dual-catalyst approach enables thermally and/or chemically unstable monomers to form both the desired polymer structure and achieve high molecular weight
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 approach allows for the production of conjugated polymers with higher molecular weights, leading to improved photoelectric conversion efficiency in solar cells and modules.
Implementation Method 1
the coupling reaction of the monomer is carried out by using one or more kinds of homogeneous transition metal complex catalysts and one or more kinds of heterogeneous transition metal complex catalysts in combination
Data Source
AI summary
The invention addresses a problem of obtaining a conjugated polymer having a higher molecular weight through coupling reaction of monomers using a transition metal catalyst. The invention relates to a method for producing a conjugated polymer, which comprises polymerizing one or more monomers through a coupling reaction, wherein the coupling reaction of the monomer is carried out by using one or more kinds of homogeneous transition metal complex catalysts and one or more kinds of heterogeneous transition metal complex catalysts in combination.