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Chapter 28: Problem 4

Polymerization of caprolactam yields (a) Terylene (b) nylon-6 (c) nylon-66 (d) bakelite

Short Answer

Expert verified
Polymerization of caprolactam yields nylon-6.

Step by step solution

01

Understanding the Question

The question asks which polymer is formed from the polymerization of caprolactam. It gives you four options: Terylene, nylon-6, nylon-66, and bakelite.
02

Identifying Caprolactam

Caprolactam is a chemical compound used as a monomer in the production of a specific type of nylon. It is important to recall which type of nylon is produced from caprolactam.
03

Recall Nylon Types

Caprolactam is used to make nylon-6, a type of polyamide. Nylon-6 is produced by the polymerization of caprolactam into long chains of polyamide.
04

Evaluating Options

Review the options provided: (a) Terylene - Made from ethylene glycol and terephthalic acid. (b) nylon-6 - Produced from caprolactam. (c) nylon-66 - Produced from hexamethylenediamine and adipic acid. (d) bakelite - Made from phenol and formaldehyde. Only option (b), nylon-6, aligns with the information about caprolactam.
05

Conclusion

Based on the analysis, caprolactam polymerizes to form nylon-6. Therefore, the correct option is (b) nylon-6.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Caprolactam
Caprolactam is a vital component in the world of synthetic materials. It is a monomer, which means it forms the basic building block for polymers when it undergoes polymerization. This compound has a ring structure, specifically a cyclic amide. When heat and certain catalysts are applied to caprolactam, the ring opens up and connects in long chains.
  • It's mainly used to produce nylon-6, a versatile type of polyamide.
  • This process is referred to as ring-opening polymerization.
One key aspect of caprolactam is its adaptability in manufacturing processes, which makes it a cornerstone for creating strong and flexible materials used in various industries.
Nylon-6
Nylon-6 is a well-known synthetic polymer, derived from the polymerization of caprolactam. It is part of the nylon family, recognizable by its resilience and ability to withstand wear and tear. What sets nylon-6 apart is its properties:
  • It offers high tensile strength. This means it can handle a lot of pulling or stretching without breaking.
  • It is resistant to abrasion, which makes it long-lasting.
  • Nylon-6 has a high melting point, making it suitable for products that need to tolerate heat.
Its balance of durability and flexibility makes nylon-6 ideal for use in textiles, carpets, and even automotive parts. Its production process, starting from caprolactam, allows for efficient and scalable manufacturing.
Polyamide
Polyamide is essentially a type of polymer containing amide groups, which are combinations of carbon, nitrogen, and hydrogen atoms. Nylon-6, along with other nylons like nylon-66, belongs to this family. Polyamides are known for their incredible durability and chemical resistance.
  • The term 'amide' refers to the specific chemical group that forms the backbone of these materials.
  • With polyamides, you often get materials that are lightweight yet strong.
  • They are popularly used in products requiring robustness, such as ropes, tires, and various industrial applications.
By understanding polyamides, one appreciates the science behind simple products and everyday applications.
Chemical Compound
The term 'chemical compound' refers to a substance composed of two or more elements chemically bonded together. In our context, caprolactam is a chemical compound that is crucial for creating nylon-6. The transformation of a monomer like caprolactam into a polymer such as nylon involves chemical reactions:
  • The chemical reactions necessitate breaking and forming of bonds, often requiring catalysts and heat.
  • This transformation process highlights the significance of chemical compounds in developing new materials.
  • Understanding chemical compounds aids in predicting the properties and behavior of new materials.
This notion helps underline the wonder of chemistry and how it is used to innovate and develop materials that shape the world as we know it.

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Most popular questions from this chapter

Ziegler-Natta catalyst is (a) \(\mathrm{K}\left[\mathrm{P}_{1} \mathrm{Cl}_{3}\left(\mathrm{C}_{2} \mathrm{H}_{4}\right)\right]\) (b) \(\left(\mathrm{Ph}_{3} \mathrm{P}\right)_{3} \mathrm{RhCl}\) (c) \(\mathrm{Al}_{2}\left(\mathrm{C}_{2} \mathrm{H}_{5}\right)_{6}+\mathrm{TiCl}_{4}\) (d) \(\mathrm{Fe}\left(\mathrm{C}_{3} \mathrm{H}_{5}\right)_{2}\)

Which of the following polymers has amide linkages ? (a) Nylon (b) Bakelite (c) Terylene (d) PVC

Which of the following polymers has the following organic compound as one of its manomers ? Nc1nc(N)nc(N)n1 (a) Bakelite (b) Melamine (c) Nylon 6 (d) MIIIV

Which of the following is a polymer having one of its manomers as sebacic acid (a) Nylon 6 (b) Nylon 6, 6 (c) Nylon 6, 10 (d) all of these

What is not true for High Density Polythene? (a) Melting point higher than LDPE. (b) Tensile strength higher than LDPE (c) Prepared in the presence of traces of \(\mathrm{O}_{2}\) (d) Linear molecules closely packed in space
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