What is the Difference Between Addition and Radical Polymerization?

The main difference between addition and radical polymerization lies in the way the polymers are formed. Addition polymerization involves the linking of unsaturated monomers, while radical polymerization is a form of addition polymerization that uses free radicals to initiate the polymerization process.

Addition Polymerization:

• The process of forming a polymer by linking unsaturated monomers.
• The most common form of addition polymers is polyolefin polymers, which form when olefin monomers (small unsaturated compounds such as alkenes) link with each other.
• No by-products are produced during the process.

Radical Polymerization:

• A form of addition polymerization that uses free radicals to initiate the polymerization process.
• Free radicals are highly reactive, allowing the polymerization process to occur.
• Monomers undergo radical polymerization due to the high reactivity of the free radicals.

In summary, both addition and radical polymerization are processes used to form polymers. Addition polymerization involves the linking of unsaturated monomers, while radical polymerization is a form of addition polymerization that uses free radicals to initiate the polymerization process.

Comparative Table: Addition vs Radical Polymerization

Here is a table comparing the differences between addition and radical polymerization:

Addition polymerization is a process where unsaturated monomers are linked to form polymers, while radical polymerization involves the addition of free radicals to form a polymer material. Both processes are forms of addition polymerization and share similarities, such as involving initiation, propagation, and termination steps for polymer chain growth. However, addition polymerization requires monomers with double or triple bonds, whereas radical polymerization can work with monomers containing single bonds. Initiators are used in radical polymerization to generate free radicals, while addition polymerization does not require initiators.