What type of reaction is used in polymerization?

chain reactions
Polymerization reactions are chain reactions, and the formation of Teflon from tetrafluoroethylene is one example. In this reaction, a peroxide (a compound in which two oxygen atoms are joined together by a single covalent bond) may be used as the initiator.

Is polymerization a chemical reaction?

In polymer chemistry, polymerization (American English), or polymerisation (British English), is a process of reacting monomer molecules together in a chemical reaction to form polymer chains or three-dimensional networks.

How does polymerization relate to organic compounds?

Polymers are long chain, giant organic molecules are assembled from many smaller molecules called monomers. Polymers consist of many repeating monomer units in long chains, sometimes with branching or cross-linking between the chains. Starch, cellulose, and rubber all possess polymeric properties. …

Is polymerisation natural?

Natural polymers occur in nature and can be extracted. They are often water-based. Examples of naturally occurring polymers are silk, wool, DNA, cellulose and proteins. Vulcanized rubber is a synthetic (man-made) polymer, while pectin is an example of a natural polymer.

What are two methods of polymerization?

Polymerization Reactions There are two basic types of polymerization, chain-reaction (or addition) and step-reaction (or condensation) polymerization. One of the most common types of polymer reactions is chain-reaction (addition) polymerization.

What are the 2 types of polymers?

Polymers fall into two categories:

thermosetting plastic or thermoset.
thermoforming plastic or thermoplastic.

What causes polymerization?

The formation of stable covalent chemical bonds between the monomers sets polymerization apart from other processes, such as crystallization, in which large numbers of molecules aggregate under the influence of weak intermolecular forces. …

What are the two types of polymerisation?

There are two basic types of polymerization, chain-reaction (or addition) and step-reaction (or condensation) polymerization. One of the most common types of polymer reactions is chain-reaction (addition) polymerization. This type of polymerization is a three step process involving two chemical entities.

What are the 4 main types of organic compounds?

Most organic compounds making up our cells and body belong to one of four classes: carbohydrates, lipids, proteins, and nucleic acids. These molecules are incorporated into our bodies with the food we eat.

Why does polymerization occur?

Polymerization occurs when initiators migrate into the micelles, inducing the monomer molecules to form large molecules that make up the latex particle.

What are the characteristics of a polymerization reaction?

Characteristics of this type of polymerization are that chain growth occurs only by the addition of monomers to the active chain end, generally at a high speed, and that only the monomer and polymer are present during the reaction.

How are polymers formed in step growth polymerization?

In step-growth polymerization, the polymers are formed by the independent reaction between the functional groups of simple monomer units. In step-growth, each step may consist of a combination of two polymers having a different or same length to form a longer length molecule.

How are organic peroxides used in the polymerization process?

Polymerisation agents are used to induce the initiation of the base resin polymerisation reaction. With polyester and vinylester resins, organic peroxides (activated by heat) are typically used in quantities ranging from 0.25% to 1.50%, by weight of the resin to initiate the curing reaction.

How are catalysts used in the polymerization process?

Sometimes a catalyst is used to expedite the reaction. Catalysts are substances that start or speed up a chemical reaction while undergoing no permanent change within itself. Polymerization process is also referred to as polymer synthesis and the smaller molecules that are chemically bonded to form a polymer are called repeating units.