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addition polymerization

chemical reaction
Also known as: chain-growth polymerization

Learn about this topic in these articles:

polymers

  • schematic diagram of the emulsion-polymerization method
    In polymerization

    In 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.

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  • Figure 1: Three common polymer structures. The linear, branched, and network architectures are represented (from top), respectively, by high-density polyethylene (HDPE), low-density polyethylene (LDPE), and phenol formaldehyde (PF). The chemical structure and molecular structure of highlighted regions are also shown.
    In chemistry of industrial polymers: Polymerization 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…

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  • Figure 1: Three common polymer structures. The linear, branched, and network architectures are represented (from top), respectively, by high-density polyethylene (HDPE), low-density polyethylene (LDPE), and phenol formaldehyde (PF). The chemical structure and molecular structure of highlighted regions are also shown.
    In chemistry of industrial polymers: Industrial 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…

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