Condensation Polymerisation | Organic Chemistry | Chemistry | FuseSchool

Tutorial: Understanding Condensation Polymers and Their Applications

Step 1: Introduction to Condensation Polymers

• Condensation polymers differ from addition polymers as they form by a reaction where a small molecule, usually water, is eliminated in addition to the polymer being formed.
• In this tutorial, we will focus on two types of condensation polymers: polyamides and polyesters.

Step 2: Understanding Polyamides

• Polyamides are formed through the amide link, which is created when a carboxylic acid reacts with an amine.
• An example is the formation of nylon 6,6, where hexane-1,6-diamine and hexanedioic acid react to form a polymer linked by amide bonds.
• The elimination of water during this reaction results in the formation of a large polymer molecule, known as Polyamide or Nylon.

Step 3: Applications of Polyamides

• Nylon, a type of polyamide, finds applications in the textile industry and engineering due to its structural integrity, especially in low-friction environments like bearings and bushes.

Step 4: Understanding Polyesters

• Polyesters are formed through the ester link, which occurs when an alcohol reacts with a carboxylic acid.
• An example is the formation of polyethylene terephthalate (PET) using Benzene-1,4-dicarboxylic acid and ethane-1,2-diol.
• The reaction between the alcohol and carboxylic acid results in the formation of ester bonds that hold the polymer molecule together, with water being released in the process.

Step 5: Applications of Polyesters

• PET is commonly used in the production of plastic drink bottles, while polyester is utilized in fabric production for clothing.

Step 6: Conclusion

• By the end of this tutorial, you should have a clear understanding of condensation polymers, be able to provide examples of polyesters and polyamides, and understand their respective applications in various industries.

By following these steps, you can gain a comprehensive understanding of condensation polymers, their formation, examples, and practical applications in everyday products.