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HomeHomework HelpchemistryPolymerization Mechanisms

Polymerization Mechanisms

Polymerization mechanisms such as cationic, anionic, and free radical polymerization dictate how polymer chains grow by adding monomers together. These mechanisms involve initiators that induce chain growth through specific chemical reactions, leading to the formation of various types of polymers with distinct properties.

intermediate
3 hours
Chemistry
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Overview

Polymerization mechanisms are fundamental processes in chemistry that allow small molecules, known as monomers, to combine and form larger structures called polymers. These mechanisms can be broadly categorized into addition and condensation polymerization, each with distinct characteristics and app...

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Key Terms

Monomer
A small molecule that can join together with other monomers to form a polymer.

Example: Ethylene is a monomer that polymerizes to form polyethylene.

Polymer
A large molecule made up of repeating structural units (monomers).

Example: Nylon is a synthetic polymer used in textiles.

Addition Polymerization
A type of polymerization where monomers add together without the loss of any small molecules.

Example: Polypropylene is formed through addition polymerization of propylene.

Condensation Polymerization
A type of polymerization where monomers join together with the loss of a small molecule, often water.

Example: Nylon is also formed through condensation polymerization.

Chain Growth
A polymerization mechanism where the growth of the polymer chain occurs by adding monomers to an active site.

Example: Chain growth occurs in the formation of polystyrene.

Step Growth
A polymerization mechanism where any two molecular species can react to form a polymer.

Example: Step growth is seen in the formation of polyesters.

Related Topics

Biopolymers
Study of natural polymers and their applications in biology and medicine.
intermediate
Polymer Chemistry
Exploration of the chemical properties and reactions of polymers.
advanced
Materials Science
Understanding the properties and applications of various materials, including polymers.
intermediate

Key Concepts

Addition PolymerizationCondensation PolymerizationChain GrowthStep Growth