The main difference between addition and condensation polymerization is that in addition polymerization the polymers are formed by the addition of monomers with no by-products whereas in condensation polymerization, the polymers are formed due to the condensation more than one different monomers resulting in the ...

What are 2 types of polymerization?

There are two general types of polymerization reactions: addition polymerization and condensation polymerization. In addition polymerization, the monomers add to one another in such a way that the polymer contains all the atoms of the starting monomers. Ethylene molecules are joined together in long chains.

What is addition polymerization with example?

Addition polymers include polystyrene, polyethylene, polyacrylates, and methacrylates. Condensation polymers are formed by the reaction of bi- or polyfunctional molecules, with the elimination of some small molecule (such as water) as a by-product. Examples include polyester, polyamide, polyurethane, and polysiloxane.

How are the two types of addition polymers different from each other?

The two types of addition polymers are: (i) Homopolymers: The addition polymers formed by the polymerisation of a single monomeric species are called homopolymers, e.g., polyethene. (ii) Copolymers: The polymers made by addition polymerisation from two different monomers are known as copolymers. e.g., Buna-s.

What are condensation polymers give an example?

Nylon and polyesters are examples of the condensation polymers. When the monomers of hexamethylene diamine and adipic acid react with each other it gives the final product i.e., Nylon-6,6 and by-product water molecules.

How is polymerization being carried out?

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

What happens during polymerisation?

Polymerisation is the reaction of monomer molecules to form long chain polymer molecules. ... A monomer is a small reactive molecule that can be joined with other monomers to form long chains. These long chain molecules can be made up from tens of thousands of monomers joined together.

What is needed for addition polymerisation?

1.1.

In addition polymerization (sometimes called chain-growth polymerization), a chain reaction adds new monomer units to the growing polymer molecule one at a time through double or triple bonds in the monomer. ... Chain initiation—usually by means of an initiator which starts the polymerization process.

What is the first step in addition polymerization?

This process has three stages: initiation, propagation, and termination. In the first stage, a substance is split into two identical parts, each with an unpaired electron. (Peroxides, which contain an O-O bond, are often used in this role.) A molecule with an unpaired electron is called a free radical.

Why is PVC an addition polymer?

(c) Polymerization of chloroethene (vinyl chloride)

This is an example of addition polymerization. PVC is made by free-radical polymerization in suspension. ... During polymerization, the polymer precipitates out as it is formed, since it is insoluble in the monomer.

Is PVC an addition polymer?

Polyvinyl choride is abbreviated to PVC. ... Polyvinyl chloride is produced in an addition polymerisation reaction using the chloroethene (vinyl chloride) monomer. This polymerisation reaction proceeds by a free-radical mechanism.

Is PVC a condensation or addition polymer?

Difference Between Addition And Condensation Polymerization

Why are addition polymers unreactive?

Addition polymers are polyalkenes. The molecules are saturated, as all of the bonds holding the carbon chain together are single. This makes them generally unreactive and chemically inert. ... These linkages make the polymers reactive towards both acids and bases, which cause the polymer structure to break down.

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