Gradient Polymer Particles for Chromatography
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for synthesizing polymer particles often result in broad size distributions and limited control over the chemical and physical properties across different sections of the particle, which hinders their application in advanced chromatography techniques and other specialized uses.
Innovation Solution
A novel method for synthesizing mono-disperse non-porous polymer particles with a unique gradient composition from the core to the shell, achieved through a sequential addition of monomers during polymerization, allowing for precise tuning of chemical composition and properties across different sections of the particle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional suspension polymerization is used, then particles can be produced, but the particles have broad size distribution
Solution Approach 1:
The patent applies preliminary action by using pre-formed polymer latex particles with uniform size as shape templates before the actual polymerization process. These templates are prepared in advance and then used to guide the formation of new particles with controlled size distribution, avoiding the broad distribution problem of conventional suspension polymerization
Solution Approach 2:
The patent uses polymer latex with uniform size as an intermediary shape template that mediates between the desired particle properties and the polymerization process. This intermediary template allows precise control of particle size distribution while simplifying the manufacturing process by providing a ready-made structural framework
2Adaptability or versatility
If homogeneous polymer composition is used, then synthesis is simpler, but control over chemical and physical properties across different sections is limited
Solution Approach 1:
The patent applies local quality by creating particles with non-uniform composition where different sections have different chemical and physical properties. The polymerization process is designed to produce a gradient structure with varying monomer composition from core to shell, allowing tailored properties in different regions for specific applications
Solution Approach 2:
The patent segments the particle into distinct regions (core and shell) with different compositions. By controlling the sequential polymerization of different monomers, the particle structure is divided into functional zones with specific properties, enhancing adaptability for various applications while managing complexity through structured segmentation
3Manufacturing precision
If gradient composition is implemented, then tailored properties are achieved, but synthesis process becomes more complex
Solution Approach 1:
The patent uses pre-formed uniform polymer latex particles as templates before implementing the gradient composition. This preliminary structuring simplifies the subsequent gradient formation process by providing a controlled framework, reducing the overall synthesis complexity while maintaining precise composition control
Solution Approach 2:
The patent implements gradient composition by systematically changing polymerization parameters (monomer addition sequence, concentration, and timing) during the process. This controlled parameter variation allows precise composition gradients to be formed while managing synthesis complexity through methodical parameter adjustment rather than complex process design
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
This method enables the production of polymer particles with tailored chemical and physical properties, enhancing their performance in applications such as bio-molecule separation, immobilization, and chromatographic columns, by maximizing mechanical strength and minimizing non-specific binding.
Implementation Method 1
polymerizing monomers in a nucleation step to form non-crosslinked or low-crosslinked nucleus; growing a particle from the nucleation step by adding a monomer mixture or a sequence of monomer mixtures
Data Source
AI summary
The current invention provides a novel method to synthesize a mono-disperse non-porous polymer particles with a unique gradient composition from the core to the shell. In particular, the present invention offers the flexibility to design the chemical and physical properties of different sections of the particle. This flexibility allows for significant latitude in the design of particles for analyzing a large variety of samples in different fields—through using these particles in different chromatography techniques including, but not limited to, ion exchange HPLC (e.g., bio-separation at different modes), reversed-phase HPLC, narrow bore and capillary HPLC, hydrophilic/hydrophobic interaction liquid chromatography, capillary electrochromatography separation, and two dimensional liquid chromatography.