Emulsion Polymerization
Emulsion Polymerization - Related Videos
05:44
A Rapid, Simple, and Standardized Homogenization Method to Prepare Antigen/Adjuvant Emulsions for Inducing Experimental Autoimmune Encephalomyelitis
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Cited by 3 •
2022
To induce experimental autoimmune encephalomyelitis, an animal model of multiple sclerosis, mice are immunized with a water-in-oil emulsion containing an autoantigen and complete Freund's adjuvant. While several protocols exist for the preparation of these emulsions, a rapid, simple, and standardized homogenization protocol for emulsion preparation is presented here.
06:45
Polymerization
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2023
Source: Vy M. Dong and Jan Riedel, Department of Chemistry, University of California, Irvine, CA Polymers are made from macromolecules, which are composed of repeating units (the so called monomeric units). In our modern world, polymers play an important role. One of the first important polymers was nylon, which is a polyamide. It found widespread application in tooth brushes and stockings.
08:45
Glass-Based Devices to Generate Drops and Emulsions
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Cited by 1 •
2022
Here, a protocol to manufacture glass-based microfluidic devices used for generating highly monodisperse emulsions with controlled drop size is presented.
04:08
Preparing an Antigen-Adjuvant Emulsion to Induce Autoimmune Encephalomyelitis
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2025
This video demonstrates an efficient homogenization technique to generate an antigen-adjuvant emulsion to induce experimental autoimmune encephalomyelitis (EAE) in a murine model. The emulsion contains an autoantigen — myelin oligodendrocyte glycoprotein (MOG) — in the water phase, surrounded by a continuous oil phase comprising an inactivated pathogenic bacteria. The emulsion ensures a sustained release of antigens for a prolonged immune response.
08:35
Minimum Burning Pressures of Water-based Emulsion Explosives
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2017
We present an apparatus based on hot-wire ignition in a pressurized enclosure and an associated methodology to measure the minimum pressure required to induce sustained combustion in water-based emulsion explosives. This method improves product characterization to allow one to use them more safely during pumping and mixing operations.
FAQs
Surfactants organize the reaction environment by forming micelles or stabilizing polymer particles as they grow. This action helps maintain a fine dispersion in water and limits unwanted particle aggregation. Surfactant content therefore affects both particle size and latex stability, making its adjustment important when engineers need a consistent aqueous polymer product.
The water-soluble initiator generates radicals, which are reactive species that begin polymerization. Because the initiator operates in the aqueous phase, radicals can start the reaction there or within monomer-swollen particles. Its concentration influences the reaction rate, so engineers must consider initiator level when controlling how quickly polymer conversion proceeds and how the dispersion develops.
These variables shape the reaction environment and influence particle size, polymerization rate, and dispersion stability. Heat affects the conditions for reaction progress, agitation helps maintain the dispersed system, and monomer concentration determines how much water-insoluble starting material is available. Coordinating them is essential for producing latex with predictable physical characteristics.
Emulsion polymerization produces polymer particles dispersed in water rather than requiring the polymer to be handled primarily in an organic solvent medium. This aqueous approach can reduce the need for organic solvents while supporting efficient, scalable manufacturing. The resulting dispersions are especially useful when water-based delivery is advantageous for coatings, adhesives, or related products.
Engineers monitor the preparation of the aqueous dispersed system, the generation of radicals by the water-soluble initiator, and the growth of polymer particles as monomer is converted. Heat, agitation, monomer concentration, initiator level, and surfactant content are tracked because they affect reaction rate, particle size, and latex stability throughout processing.
The process produces aqueous polymer dispersions that serve as functional materials in paints, coatings, adhesives, synthetic rubbers, and plastics. Their value comes from combining dispersed polymer particles with a water-based format, while process conditions allow engineers to influence particle size, reaction rate, and stability. These features support practical formulation and scalable materials manufacturing.