(Meth)acrylate Molecule with Integrated Chain Transfer for Deep Curing
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Solution Overview
Problem
Conventional radical curable materials using (meth)acrylates face challenges in uniform curing, especially in complex shapes, due to insufficient mixing and compatibility issues with chain transfer agents, leading to deteriorated physical properties and increased viscosity.
Innovation Solution
A (meth)acrylate with specific structures, such as those represented by Formula 1, is used to enhance sensitivity and curability, improving deep portion curing and compatibility, thereby reducing viscosity and maintaining physical property integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a chain transfer agent is added to improve curability, then curability is improved, but mixing effort and time increase
Solution Approach 1:
The patent combines the chain transfer agent functionality directly into the (meth)acrylate molecule itself, creating a compound that possesses both the polymerizable double bond and the chain transfer capability. This integration eliminates the need for separate chain transfer agent addition and mixing operations, thereby reducing mixing time and effort while maintaining improved curability.
Solution Approach 2:
The (meth)acrylate compound serves multiple functions simultaneously: it acts as the polymerizable monomer, the chain transfer agent, and the reactive component in the curing system. This multi-functionality eliminates the need for separate additives, streamlining the formulation process and reducing the time required for mixing and preparation.
2Reliability
If a chain transfer agent is mixed with (meth)acrylate to improve curability, then curability is improved, but compatibility and viscosity control become problematic
Solution Approach 1:
By merging the chain transfer functionality into the (meth)acrylate molecular structure, the patent ensures inherent compatibility between the chain transfer capability and the polymerizable groups. The compound is designed so that the chain transfer groups are integrated within the same molecular framework, eliminating compatibility issues that arise when mixing separate additives.
Solution Approach 2:
The patent modifies the molecular structure of the (meth)acrylate by introducing specific functional groups (such as hydroxyl groups or other chain transfer-capable moieties) at controlled positions and concentrations. This structural parameter change enables the compound to exhibit both polymerization and chain transfer properties while maintaining optimal compatibility and controlling viscosity characteristics.
3Reliability
If conventional (meth)acrylate is used without specific structures, then basic curability is achieved, but deep portion curability is insufficient
Solution Approach 1:
The patent introduces specific functional groups (such as hydroxyl groups, carboxyl groups, or other hydrogen-donating moieties) at specific locations within the (meth)acrylate molecular structure. These local functional groups are positioned to facilitate chain transfer reactions that propagate curing into deep portions, creating localized reactivity that enhances deep portion curability while maintaining overall system performance.
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 (meth)acrylate with enhanced sensitivity and compatibility allows for effective curing of deep portions without increasing viscosity, improving the physical properties and handling of the curable material, making it suitable for complex shapes and low-viscosity applications.
Implementation Method 1
A (meth)acrylate has a radical curability, and is widely used as a curable material in a system including only a (meth)acrylate or a system in which a (meth)acrylate and a radical polymerization initiator are mixed
Implementation Method 2
a mixture of a (meth)acrylate and a photo radical generator is used as a photo curable material
Implementation Method 3
a mixture of a (meth)acrylate and a heat radical generator is used as a heat curable material
Data Source
AI summary
Provided is a (meth)acrylate and a radical curable material with which the sensitivity can be enhanced to improve the curability, the increase in viscosity can be suppressed due to good compatibility with various acrylate compounds, and there is no risk that the physical properties of the curable material are deteriorated. The (meth)acrylate has one or more structures represented by Formula 1 in the molecule, and when the (meth)acrylate is used for radical curing, the sensitivity is enhanced. In Formula 1, R1 is a hydrogen atom or a methyl group, R2 is a C1-C10 alkyl chain, R3 is either Formula 2 or 3, and R4 is an alkyl chain constituted by carbon atoms and hydrogen atoms.