Ionic Silicone Elastomers with Reactive Groups
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Solution Overview
Problem
Existing polyorganosiloxane ionomers lack reactive functional groups such as vinyl, acryl, and epoxy, limiting their curability and versatility in applications like healthcare, personal care, and coatings.
Innovation Solution
Development of polyorganosiloxane ionomers with integrated vinyl, acryl, and epoxy groups, enabling free-radical polymerization for thermal or actinic radiation curing, resulting in elastomeric compositions suitable for various applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If polyorganosiloxane ionomers are synthesized without reactive functional groups, then the synthesis process is simpler, but the curability and versatility of the material is limited
Solution Approach 1:
The patent combines ionic groups and reactive functional groups (vinyl, acryl, epoxy) within the same polyorganosiloxane ionomer molecule. This merging allows the material to possess both ionic properties and curability through free-radical polymerization, resolving the contradiction between simplicity and versatility by integrating multiple functions into a single molecular structure
Solution Approach 2:
The invention creates composite functional structures by incorporating reactive functional groups into the polyorganosiloxane ionomer chain. The resulting material combines the properties of ionic polymers with those of curable polymers, enabling applications that require both ionic functionality and crosslinking capability
2Ease of manufacture
If reactive functional groups are incorporated into polyorganosiloxane ionomers, then curability through free-radical polymerization is enabled, but the synthesis complexity increases
Solution Approach 1:
The patent incorporates reactive functional groups during the synthesis stage of polyorganosiloxane ionomers. By preparing the functionalized ionomers in advance, the material is ready for subsequent curing applications without requiring additional modification steps, thus enabling curability while managing synthesis complexity through upfront functionalization
3Strength
If polyorganosiloxane ionomers with reactive groups are used, then elastomeric compositions with enhanced properties can be created, but the formulation complexity increases
Solution Approach 1:
The patent utilizes the reactive functional groups in polyorganosiloxane ionomers to undergo free-radical polymerization and crosslinking reactions. This changes the physical and mechanical parameters of the elastomeric compositions, transforming them from simple mixtures to crosslinked networks with enhanced tensile strength, tear resistance, and customizable tack properties
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 inclusion of reactive groups allows for the creation of curable elastomeric compositions with enhanced properties like tensile strength, tear resistance, and customizable tack, suitable for diverse applications including healthcare, personal care, and industrial uses.
Implementation Method 1
The polyorganosiloxane ionomer preferably includes one or more reactive groups selected from the group consisting of unsaturated reactive groups such as vinyl, acryl as well as epoxy groups as part of the polymer chain and is rendered curable via free-radical polymerization
Data Source
Figure 1
AI summary
A composition including an actinic radiation or thermally curable polyorganosiloxane ionomer having one or more reactive groups, for example, vinyl, acrylate, epoxy groups.