Polymer Brush Coating Compositions With On-Demand Catalyst Activation

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Solution Overview

Problem

The formation of polymer brushes on solid surfaces is a complex and time-consuming process requiring specialized equipment and unstable reaction mixtures, making it difficult to manufacture polymer brush-coated surfaces efficiently and inexpensively.

Innovation Solution

The development of reaction compositions comprising dormant transition metal catalysts and oxygen scavengers, which can be stored stably and activated on demand, allowing for the formation of polymer brushes on solid parts with immobilized polymerization initiators.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If specialized equipment and unstable reaction mixtures are used for polymer brush formation, then polymer brushes can be formed on solid surfaces, but the manufacturing process becomes complex and time-consuming

Engineering Contradiction:

Improvepolymer brush formationVSAvoidmanufacturing process

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces a stable reaction composition as an intermediary that mediates between the solid surface with immobilized initiators and the polymerization process. This composition contains dormant species that are activated by oxygen scavengers, serving as a stable intermediate that simplifies the overall manufacturing process while maintaining reliable polymer brush formation

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the chemical state of the catalyst from active to dormant, transforming an unstable, highly reactive system into a stable, storable composition. By controlling the activation state through oxygen scavenger addition, the system transitions from a complex, time-sensitive process to a simple, on-demand activation process

Inventive Principle:

Principle #35Parameter changes

2Productivity

If stable storage of polymerization compositions is achieved, then manufacturing efficiency improves, but the compositions require activation on demand

Engineering Contradiction:

Improvemanufacturing efficiencyVSAvoidactivation process

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The patent performs preliminary stabilization of the polymerization composition by converting active catalysts to dormant species before storage. This preliminary action allows the composition to be prepared and stored in advance under stable conditions, then activated on demand by simply adding oxygen scavengers, eliminating the need for specialized equipment during actual manufacturing

Inventive Principle:

Principle #10Preliminary action

3Manufacturing precision

If strict inert atmosphere and temperature control are maintained, then polymer brush formation is controlled, but the process requires specialized conditions and facilities

Engineering Contradiction:

Improvepolymer brush formation controlVSAvoidspecialized conditions requirement

Core Design Contradiction:

Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent converts the typically harmful effect of oxygen (which interferes with polymerization) into a beneficial control mechanism. By using oxygen scavengers to activate dormant catalysts, the system uses oxygen presence as a trigger for controlled activation, eliminating the need for inert atmospheres while maintaining precise control over polymer brush formation

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The reaction composition is designed to be self-activating through the addition of oxygen scavengers, which trigger the activation of dormant species without requiring external specialized equipment or facilities. The system serves itself by using the oxygen in the environment as part of the activation mechanism

Inventive Principle:

Principle #25Self-service

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 method enables the stable storage and on-demand activation of polymerization compositions, simplifying the process of forming polymer brushes on solid surfaces, improving manufacturing efficiency and reducing the need for specialized conditions.

Implementation Method 1

the activation agent comprises one or more oxygen scavengers

Methodology Applied

Scientific EffectOxygen scavenging: Reduction

Implementation Method 2

surface polymerisation on the solid part, whereby polymer brushes are formed via the polymerisation initiators

Methodology Applied

Scientific EffectPolymerization: Chemical Bonding

Data Source

PatentUS20240059822A1Compositions for forming Polymer Brushes

Publication Date: 2024.02.22 YIELD ENGINEERING SYSTEMS INC

AI summary

The present invention relates to novel chemical solutions suitable for forming polymer brushes on a surface of a solid part. The present invention further relates to methods of forming polymer brushes on the surface of a solid part using the novel chemical solutions as well as solid parts having polymer brushes coated onto the surface and uses of such solid parts.