Hygromorphic Polyamide Copolymers with Sulfone Pendant Groups
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a need for new polymers and copolymers with hygromorphic and motile properties, as well as methods for making them, as existing technologies primarily focus on bilayer designs and responsive polymeric systems rather than simple, wholly covalent polymers in monolithic form.
Innovation Solution
Development of diamine monomers with sulfone-terminated pendant groups, used to create polyamide, polyimide, and poly(amide-imide) polymers and copolymers that exhibit hygromorphic properties and humidity-driven motility, through specific synthetic routes involving reduction of bis-nitroaryl moieties and incorporation into various polymer structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If bilayer designs and responsive polymeric systems are used, then humidity-driven actuation is achieved, but device complexity increases
Solution Approach 1:
The patent merges multiple functional requirements into a single monolithic polymer structure. The polymer contains both the hygromorphic functional groups (ester-sulfone and/or amide-sulfone pendant chains) and the structural framework in one covalent network, eliminating the need for separate bilayer components while maintaining humidity-driven actuation capability
Solution Approach 2:
The monolithic polymer structure performs multiple functions simultaneously: it provides structural integrity, contains the hygromorphic functional groups for humidity sensing, and enables motility through coordinated molecular responses. This multi-functionality within a single material system reduces overall device complexity compared to assembling multiple specialized components
2Adaptability or versatility
If new polymer structures with sulfone-terminated pendant groups are synthesized, then hygromorphic properties are achieved, but manufacturing complexity increases
Solution Approach 1:
The synthesis approach segments the complex polymer structure into manageable components: standard diamine monomers with sulfone-terminated pendant groups are synthesized separately using established chemistry, then incorporated into the polyimide backbone through conventional polycondensation reactions. This modular synthesis strategy makes the manufacturing process more accessible despite the novel functionality
Solution Approach 2:
The patent utilizes standard polyimide synthesis parameters and conditions, modifying only the monomer structure rather than the synthesis process itself. The ester-sulfone and amide-sulfone pendant chains are incorporated using existing polycondensation methodologies, maintaining ease of manufacture while achieving the desired hygromorphic 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 resulting polymers and copolymers demonstrate hygromorphic properties and humidity-driven motility, offering scalable and cost-effective solutions for adaptive structures functional in both dry and wet environments.
Implementation Method 1
the stress-strain generated from movement of water molecules directed by humidity variation, are being exploited
Implementation Method 2
demonstrate hygromorphic- and humidity-driven motility properties
Data Source
AI summary
New diamine monomers bearing sulfone terminated pendant groups, as well as methods for making the same, are provided. The diamine monomers are useful toward making polyamide, polyimide, and poly(amide-imide) polymers and copolymers, which possess hygromorphic properties and demonstrate humidity driven motility.