51 lines
2.0 KiB
Markdown
51 lines
2.0 KiB
Markdown
---
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title: "Emulsion polymerization"
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chunk: 4/4
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source: "https://en.wikipedia.org/wiki/Emulsion_polymerization"
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category: "reference"
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tags: "science, encyclopedia"
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date_saved: "2026-05-05T10:47:38.679050+00:00"
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instance: "kb-cron"
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---
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=== Non-surfactant stabilizers ===
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Some grades of polyvinyl alcohol and other water-soluble polymers can promote emulsion polymerization even though they do not typically form micelles and do not act as surfactants (for example, they do not lower surface tension). It is believed that growing polymer chains graft onto these water-soluble polymers, which stabilize the resulting particles.
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Dispersions prepared with such stabilizers typically exhibit excellent colloidal stability (for example, dry powders may be mixed into the dispersion without causing coagulation). However, they often result in products that are very water sensitive due to the presence of the water-soluble polymer.
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=== Other ingredients ===
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Other ingredients found in emulsion polymerization include chain transfer agents, buffering agents, and inert salts. Preservatives are added to products sold as liquid dispersions to retard bacterial growth. These are usually added after polymerization, however.
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== Applications ==
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Polymers produced by emulsion polymerization can roughly be divided into three categories.
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Synthetic rubber
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Some grades of styrene-butadiene (SBR)
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Some grades of Polybutadiene
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Polychloroprene (Neoprene)
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Nitrile rubber
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Acrylic rubber
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Fluoroelastomer (FKM)
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Plastics
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Some grades of PVC
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Some grades of polystyrene
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Some grades of PMMA
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Acrylonitrile-butadiene-styrene terpolymer (ABS)
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Polyvinylidene fluoride
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Polyvinyl fluoride
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PTFE
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Dispersions (i.e. polymers sold as aqueous dispersions)
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polyvinyl acetate
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polyvinyl acetate copolymers
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polyacrylates
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Styrene-butadiene
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VAE (vinyl acetate – ethylene copolymers)
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== See also ==
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International Union of Pure and Applied Chemistry
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Radical polymerization
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RAFT (chemistry)
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Robert Gilbert
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Dispersion polymerization
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Ray P. Dinsmore
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== References == |