Tuliskan struktur molekul monomer dari polimer berikut!a. Polietilena c. Polistirena b. PVC d. Ka...

Summary

This video explains the process of polymerization, focusing on addition polymerization and condensation polymerization. It describes how large polymers are formed from smaller monomers through chemical reactions. Specific examples include the formation of polyethylene, polyvinyl chloride (PVC), polystyrene, and synthetic rubber like neoprene. The video details the monomers involved, such as ethylene, vinyl chloride, styrene, and chloroprene, along with their chemical structures. Additionally, it highlights how double bonds in the monomers break during polymerization, allowing the creation of long polymer chains.

Takeaways

• 😀 Polymers are large molecules formed by linking smaller molecules called monomers through polymerization reactions.
• 😀 Addition polymerization involves breaking the double bond of monomers, allowing them to form long polymer chains.
• 😀 Condensation polymerization involves smaller monomers reacting with each other, releasing small molecules like water or methanol.
• 😀 Polyethylene (PE) is formed through addition polymerization of ethylene monomers, breaking their double bonds.
• 😀 Polyvinyl chloride (PVC) is formed through addition polymerization of vinyl chloride monomers, which also involves breaking a double bond.
• 😀 Polystyrene (PS) is formed via addition polymerization of styrene monomers, which involves the breaking of a double bond between carbon atoms.
• 😀 Neoprene, a synthetic rubber, is formed by the addition polymerization of chloroprene monomers.
• 😀 In addition polymerization, the monomers form bonds with neighboring molecules, creating a long chain without losing any atoms in the process.
• 😀 The polymerization process involves three stages: initiation, propagation, and termination.
• 😀 Each polymer discussed—PE, PVC, PS, and neoprene—is made by different monomers, but the polymerization mechanisms are quite similar, typically involving the breaking of double bonds.

Q & A

What is a polymer?

A polymer is a large molecule or macromolecule that is made up of smaller molecules called monomers.

What is polymerization?

Polymerization is the process of forming polymers from their monomers, which can occur through various types of reactions.

What are the two main types of polymerization mentioned in the script?

The two main types of polymerization mentioned are addition polymerization and condensation polymerization.

Can you explain addition polymerization?

Addition polymerization involves the formation of polymers through the addition reactions of monomers that contain double bonds, leading to the breaking of those double bonds.

What is the example given for addition polymerization?

The example given for addition polymerization is the formation of polyethylene from ethylene monomers.

What are the stages of anionic addition polymerization?

The stages of anionic addition polymerization include initiation, propagation, and termination.

What is condensation polymerization?

Condensation polymerization is the reaction where smaller molecules or monomers react with each other to form a polymer, typically releasing small molecules like water or methanol.

What is the example provided for condensation polymerization?

The example provided for condensation polymerization is the formation of nylon 6,6, which releases water molecules during the reaction.

What is the monomer for polyethylene (PE)?

The monomer for polyethylene (PE) is ethylene.

What are the monomers for PVC and polystyrene?

The monomer for PVC is vinyl chloride, and the monomer for polystyrene is styrene.

What is neoprene and how is it formed?

Neoprene is a type of synthetic rubber formed through addition polymerization from the monomer chloroprene.