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Readily Functionalizable and Stabilizable Polymeric Particles with Controlled Size and Morphology by Electrospray.
Hoik Lee1, Sol An2, Sukjoo Kim1
1Nano Fusion Technology Research Group, Division of Frontier Fibers, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, Tokida 3-15-1, Ueda, Nagano, 386-8567, Japan.
Scientific Reports
|October 26, 2018
Summary
Researchers created functionalizable polymer microparticles using electrospraying. Surface modification with click chemistry introduced desired functionalities, demonstrating a versatile method for stable organic materials.
Area of Science:
- Materials Science
- Polymer Chemistry
- Nanotechnology
Background:
- Electrospraying is a versatile technique for producing micro/nanoparticles.
- Controlling particle properties requires understanding polymer-solvent interactions and process parameters.
- Functionalization of particle surfaces is crucial for advanced applications.
Purpose of the Study:
- To synthesize functionalizable copolymers for electrospraying.
- To control microparticle size, shape, and morphology via electrospray parameters.
- To demonstrate surface modification of electrosprayed particles using click chemistry.
Main Methods:
- Synthesis of poly(styrene-random-glycidyl methacrylate) copolymers.
- Fabrication of microparticles using the electrospray technique.
- Surface functionalization via thiol-epoxy click reaction and spectroscopic characterization.
Main Results:
- Electrospraying produced microparticles with tunable sizes and morphologies.
- Process parameters (feed rate, voltage) and polymer-solvent compatibility influenced particle characteristics.
- Successful surface modification with 3-mercaptopropionic acid was confirmed.
- In-particle epoxide crosslinking enhanced particle stability.
Conclusions:
- Polymer structure and properties allow fine-tuning of electrosprayed particle characteristics.
- Post-electrospray modification enables imparting diverse chemical functionalities.
- This approach offers a pathway to create stable, functional organic materials.
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