Solvent-Free Cyclodextrin Polymerization for Tough Coatings

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Solution Overview

Problem

Traditional host-group-containing macromolecular materials require solvents for polymerization, making production complex, time-consuming, and limiting their application in forming coatings or films due to poor compatibility between polymerizable monomers.

Innovation Solution

A composition comprising a host-group-containing polymerizable compound dissolved in a polymerizable compound, such as cyclodextrin derivatives, allowing polymerization without solvents, enhancing energy to failure and simplifying production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If an aqueous solvent is used to dissolve host-group-containing polymerizable monomer for efficient polymerization, then polymerization efficiency is improved, but production steps become complicated and production time increases due to necessary solvent removal

Engineering Contradiction:

Improvepolymerization efficiencyVSAvoidproduction time

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The invention extracts and eliminates the aqueous solvent from the polymerization system by using a non-aqueous solvent instead. This allows the host-group-containing polymerizable monomer to be dissolved and polymerized without requiring subsequent solvent removal steps, thereby reducing production time while maintaining polymerization efficiency.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The invention changes the solvent parameter from aqueous to non-aqueous, which fundamentally alters the polymerization system. This parameter change enables direct polymerization without solvent removal, reducing production time while maintaining or improving polymerization efficiency through appropriate solvent selection.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If an aqueous solvent is used to dissolve host-group-containing polymerizable monomer, then polymerization can proceed efficiently, but the production process becomes more complex requiring additional solvent removal steps

Engineering Contradiction:

Improvepolymerization efficiencyVSAvoidproduction process complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The invention extracts the aqueous solvent from the system and replaces it with a non-aqueous solvent. This elimination of the aqueous phase removes the need for complex solvent removal equipment and procedures, simplifying the production process while maintaining polymerization efficiency.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

By changing the solvent parameter from aqueous to non-aqueous, the invention fundamentally simplifies the production process. The non-aqueous solvent allows direct polymerization without additional removal steps, reducing process complexity while maintaining efficiency.

Inventive Principle:

Principle #35Parameter changes

3Ease of manufacture

If traditional polymerization methods with solvents are used, then polymerization can be performed, but the resulting macromolecular materials are difficult to form into coatings or films due to solvent interference

Engineering Contradiction:

Improvepolymerization feasibilityVSAvoidapplication versatility

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The invention extracts and removes the aqueous solvent from the polymerization system, replacing it with a non-aqueous solvent. This eliminates solvent interference in the final product, enabling the macromolecular materials to be easily formed into coatings or films while maintaining polymerization feasibility.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

By changing the solvent parameter from aqueous to non-aqueous, the invention improves the adaptability of the resulting materials. The non-aqueous environment prevents solvent-related interference, allowing versatile applications including coating and film formation while maintaining ease of manufacture.

Inventive Principle:

Principle #35Parameter changes

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 host-group-introduced polymers with excellent energy to failure without solvents, improving toughness and strength, and simplifying the production process, enabling the formation of various shapes like coatings or films.

Implementation Method 1

a mixture containing a host-group-containing polymerizable compound and a polymerizable compound that can dissolve this host-group-containing polymerizable compound

Methodology Applied

Scientific EffectDissolution: Solvation

Data Source

PatentUS11472903B2Composition for polymerization, polymer of same and method for producing polymer

Publication Date: 2022.10.18 OSAKA UNIVERSITY

AI summary

Provided are a composition for polymerization from which a macromolecular material that contains a host-group-introduced polymer with excellent energy to failure can be produced without using a solvent; a polymer of the composition; and a method for producing the polymer. The composition for polymerization contains a solution containing a first polymerizable compound and a host-group-containing polymerizable compound that is dissolved in the first polymerizable compound, wherein the host group present in the host-group-containing polymerizable compound is a group formed by removing one hydrogen atom or hydroxy group from a cyclodextrin, and wherein the cyclodextrin is at least one cyclodextrin selected from the group consisting of α-cyclodextrin, β-cyclodextrin, and γ-cyclodextrin.