Acrylamide Mesoporous Polymer Pore Control
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Solution Overview
Problem
Existing methods for preparing porous materials are impractical for industrial scale due to the need for strictly controlled reaction conditions and the difficulty in controlling pore size, limiting their applicability.
Innovation Solution
An acrylamide-based mesoporous polymer is fabricated using a simple RAFT polymerization method, allowing for the formation of uniform pores with diameters between 2.0 to 10.0 nm, which can be controlled by annealing temperature and chemical structure modifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional methods (surfactant templates, metal-organic frameworks, porogens) are used to prepare porous materials, then porous structures can be formed, but the methods require strictly controlled reaction conditions and complicated mechanisms making them impractical for industrial scale
Solution Approach 1:
The patent changes the chemical parameters by using acrylamide monomers with specific functional groups (carboxyl, hydroxyl, amine) that can form hydrogen bonds, replacing conventional surfactant-based methods. This allows pore formation through simple polymerization without strict condition control, achieving both reliability in pore size control and ease of manufacture.
Solution Approach 2:
The patent employs self-assembly of polymer chains through hydrogen bonding interactions between functional groups. The polymerization process automatically organizes chains into porous structures without external templates or complex mechanisms, enabling industrial-scale production while maintaining uniform pore sizes through the self-organizing nature of the system.
2Manufacturing precision
If conventional porous materials are prepared, then porous structures are obtained, but pore size is hard to control limiting applicable usage
Solution Approach 1:
The patent introduces different functional groups at specific locations within the polymer chain (carboxyl, hydroxyl, amine groups) that locally form hydrogen bonds to define pore structures. By controlling the type and distribution of these local groups, uniform pore sizes are achieved while maintaining versatility for various applications through adjustable chemical composition.
Solution Approach 2:
The patent creates a universal polymerization system using acrylamide monomers that can form multiple types of hydrogen bonds, enabling the same basic polymerization process to produce porous materials with different pore sizes and properties by simply changing monomer composition. This multi-functionality expands application range while maintaining manufacturing precision.
3Ease of manufacture
If simple polymerization methods are used, then ease of manufacture is improved, but formation of uniform minute pores becomes difficult
Solution Approach 1:
The patent uses self-assembly of polymer chains through hydrogen bonding to automatically organize into uniform porous structures during simple polymerization. The hydrogen bond network self-organizes chains into regular arrangements, creating uniform minute pores without requiring complex external control mechanisms, thus achieving both ease of manufacture and manufacturing precision.
Solution Approach 2:
The patent changes the chemical parameters by incorporating specific functional groups (carboxyl, hydroxyl, amine) that form hydrogen bonds, transforming a simple polymerization process into one that spontaneously produces uniform pores. This parameter change enables the simple process to achieve high precision pore uniformity through the self-organizing hydrogen bond network.
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 method enables the production of acrylamide-based mesoporous polymers with uniform pore sizes, enhancing their applicability in various fields such as adsorbing volatile organic compounds and capturing catalysts, while maintaining thermal stability and mechanical properties.
Implementation Method 1
carrying out RAFT (Reversible Addition-Fragmentation Chain Transfer) polymerization of a reactant including at least one monomer of formula (2) in the presence of a radical initiator and a RAFT agent
Implementation Method 2
which can be controlled by annealing temperature and chemical structure modifications
Implementation Method 3
The fifth method uses microphase separation of block copolymers to prepare polymer nanostructures that have porous morphology
Data Source
AI summary
The present invention relates to an acrylamide-based mesoporous polymer and its preparation method, where the acrylamide-based mesoporous polymer is fabricated by a simple preparation method to have uniform minute pores controllable in pore size and thereby applicable to a wide variety of fields. The acrylamide-based mesoporous polymer includes at least one of a defined repeating unit and contains a plurality of pores having a diameter of 2.0 to 10.0 nm in the solid state.