addition polymerization
Quick Summary
Addition polymerization is a chemical reaction where monomers, which are small molecules, chemically combine to form a very large molecule called a polymer. Unlike condensation polymerization, this process occurs without the formation of by-products. Catalysts are often used in addition polymerization, and they can influence the final properties of the polymer.12
Common examples of addition polymers include polyethylene, polypropylene, polystyrene, and polyvinyl chloride. These materials are often thermoplastic, meaning they can be softened by heating. The formation of stable covalent chemical bonds between monomers distinguishes polymerization from other aggregation processes.341
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polymerizationIn addition polymerization, monomers react to form a polymer without the formation of by-products. Addition polymerizations usually are carried out in the presence of catalysts, which in certain cases exert control over structural details that have important effects on the properties of the polymer.
Read MoreIn addition polymerization, monomers react to form a polymer without the formation of by-products. Addition polymerizations usually are carried out in the presence of catalysts, which in certain cases exert control over structural details that have important effects on the properties of the polymer.
Read More- chemistry of industrial polymersPolymerization reactions
…is called chain-growth polymerization or addition polymerization. Chain-growth polymerization is most commonly applied to vinyl monomers (that is, monomers containing carbon-carbon double bonds) and to certain types of cyclic monomers (that is, monomers in which the double bond is contained in ring-shaped molecules). The other process, called step-growth polymerization, involves…
Read More…is called chain-growth polymerization or addition polymerization. Chain-growth polymerization is most commonly applied to vinyl monomers (that is, monomers containing carbon-carbon double bonds) and to certain types of cyclic monomers (that is, monomers in which the double bond is contained in ring-shaped molecules). The other process, called step-growth polymerization, involves…
Read More - chemistry of industrial polymersIndustrial polymerization methods
The addition polymerization reactions described above are usually exothermic—that is, they generate heat. Heat generation is seldom a problem in small-scale laboratory reactions, but on a large industrial scale it can be dangerous, since heat causes an increase in the reaction rate, and faster reactions in…
Read MoreThe addition polymerization reactions described above are usually exothermic—that is, they generate heat. Heat generation is seldom a problem in small-scale laboratory reactions, but on a large industrial scale it can be dangerous, since heat causes an increase in the reaction rate, and faster reactions in…
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