Polymerized Emulsion
Polymerized Emulsion - Related Videos
06:45
Polymerization
0 Views •
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.
04:08
Preparing an Antigen-Adjuvant Emulsion to Induce Autoimmune Encephalomyelitis
0 Views •
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
0 Views •
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.
05:46
Assembly of Porous Monolithic Materials Using a Pickering Emulsion Strategy Stabilized by Metal–Organic Framework (MOF) Particles
0 Views •
2026
This study successfully uses MIL-96(Al) Metal-Organic Frameworks particles to stabilize Pickering emulsions, which serve as templates to form mechanically robust, hierarchically porous monolithic materials. This method allows scalable MOF shaping while preserving crystal integrity. Tuning formulation is key to controlling pore size, interconnectivity, permeability, and robustness.
07:28
Ethylene Polymerizations Using Parallel Pressure Reactors and a Kinetic Analysis of Chain Transfer Polymerization
0 Views •
2015
A protocol for the high-throughput analysis of polymerization catalyst, chain transfer polymerizations, polyethylene characterization, and reaction kinetic analysis is presented.
FAQs
Surfactants disperse hydrophobic monomers in the aqueous continuous phase by organizing them into micelles or droplets. This arrangement helps maintain contact between the monomer and the surrounding liquid while polymerization proceeds, supporting formation of a stable latex. Adjusting surfactant conditions can therefore influence the resulting polymer particle size and the physical stability of the dispersion.
The initiator generates reactive radicals, which are highly reactive species that begin chain growth from the monomers. As these reactions continue, polymer material forms within the dispersed system and develops into polymer particles. The initiator concentration is one of the reagent conditions that can affect particle formation and the molecular properties of the resulting polymer.
Agitation, temperature, and reagent concentrations are central control variables. Agitation helps maintain the dispersed arrangement, while temperature affects the conditions under which radical-driven chain growth occurs. Changes in reagent concentrations alter the polymerization environment. Together, these factors can shift particle size and molecular properties, allowing the latex to be adjusted for different material-design goals.
A preparation begins by dispersing hydrophobic monomers in the continuous liquid phase with surfactants. Agitation maintains the dispersion, and an initiator is introduced so reactive radicals can start chain growth. Controlled temperature and reagent concentrations guide the reaction as polymer particles form. The resulting product is a stable latex containing the polymer in the liquid medium.
This approach provides a route to water-based polymers and supports low-solvent processing. That feature is valuable when the desired product must be handled as a latex or incorporated into formulations such as coatings and adhesives. The ability to tune particle size and molecular properties also connects processing conditions with the performance requirements of the final material.
Their products are used in paints, coatings, adhesives, synthetic rubber, and textile treatments. These applications benefit from water-based processing and from the ability to adjust dispersion and polymer characteristics through reaction conditions. In chemistry, the system also serves materials design by linking surfactants, initiators, agitation, temperature, and reagent concentrations to the properties of the resulting polymer.