Polymer Solutions via Michael Donor Solvent
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Solution Overview
Problem
Existing methods for producing polymeric Michael donor compounds require the removal of solvents, which is undesirable and inefficient.
Innovation Solution
Polymerizing ethylenically unsaturated monomers with a solvent comprising 40% or more by weight of multi-functional Michael donor compounds, allowing for the creation of polymer solutions without the need for solvent removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional solution polymerization is used with solvents like 2-butoxy ethanol, then polymerization can proceed effectively, but solvent removal becomes necessary and inefficient
Solution Approach 1:
The patent changes the chemical composition parameter of the solvent system by using multi-functional Michael donor compounds (containing at least two Michael donor groups per molecule) as the primary solvent. This parameter change allows the solvent to become part of the polymer structure through Michael addition reactions, eliminating the need for separate solvent removal steps while maintaining effective polymerization.
2Manufacturing precision
If solvent removal is required to obtain pure polymer, then polymer purity is improved, but process complexity and time increase
Solution Approach 1:
The patent merges the solvent removal function with the polymerization reaction itself. The multi-functional Michael donor solvent reacts with the polymer chains during polymerization, becoming incorporated into the final polymer structure. This combining of functions eliminates the need for separate purification equipment and steps, reducing process complexity while achieving pure polymer product.
Solution Approach 2:
The patent enables continuous polymerization without interruption for solvent removal. The multi-functional Michael donor solvent remains in the system throughout the entire polymerization process, continuously participating in the reaction and becoming part of the polymer structure, thereby maintaining continuous productive action without pauses for purification.
3Productivity
If traditional solvents are used for polymerization, then polymerization proceeds well, but additional processing steps are required
Solution Approach 1:
The multi-functional Michael donor solvent serves dual functions: it acts as the polymerization medium and simultaneously serves as a reactive component that becomes part of the polymer structure. The solvent essentially serves itself by being consumed in the polymerization reaction, eliminating the need for separate removal operations and reducing total process time.
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 enables the production of polymer solutions with improved properties, such as reduced viscosity and enhanced green strength, while eliminating the need for solvent removal, facilitating the use in curable mixtures for applications like coatings and adhesives.
Implementation Method 1
polymerizing one or more monomer in a solvent, wherein said monomer comprises one or more ethylenically unsaturated monomer that is a multi-functional Michael donor
Implementation Method 2
A compound with two or more Michael active hydrogen atoms is known herein as a multi-functional Michael donor
Data Source
AI summary
There is provided a method of making a polymer solution comprising polymerizing one or more monomer in a solvent, wherein said monomer comprises one or more ethylenically unsaturated monomer that is a multi-functional Michael donor, and wherein said solvent comprises 40% or more by weight, based on the weight of said solvent, one or more multi-functional Michael donor.