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Polymers are large molecules formed by the repeated joining of small units called monomers. They are widely used in daily life and industrial applications due to their durability, flexibility, and versatility.

Polymers form an important chapter in BITSAT Chemistry and are frequently asked in conceptual and application-based questions.

What are Polymers?

A polymer is a macromolecule made up of a large number of repeating monomer units linked together through chemical bonds. Polymers can occur naturally or be synthesized artificially.

Examples include plastics, rubber, nylon, proteins, and cellulose.

Classification of Polymers

Natural Polymers

These polymers occur naturally in plants and animals.

Examples:

  • Cellulose
  • Starch
  • Proteins
  • Natural Rubber

Synthetic Polymers

These are man-made polymers produced through chemical processes.

Examples:

  • Polythene
  • PVC
  • Nylon
  • Bakelite
  • Teflon

Types of Polymerization

Addition Polymerization

Monomers combine repeatedly without the elimination of any small molecule.

POLYMERS
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Condensation Polymerization

Monomers combine with the elimination of small molecules such as water or ammonia.

Properties of Polymers

  • Lightweight and durable.
  • Resistant to chemicals and corrosion.
  • Good insulating properties.
  • Easily molded into different shapes.
  • Available in flexible and rigid forms.

Applications of Polymers

  • Plastic products and packaging.
  • Textile and clothing industries.
  • Automobile components.
  • Electrical insulation materials.
  • Medical devices and equipment.
  • Construction and household products.

Importance for BITSAT

Polymers is a scoring chapter in BITSAT Chemistry. Questions are commonly asked on polymer classification, polymerization processes, important synthetic polymers, and their applications. A clear understanding of this topic helps students answer objective questions quickly and accurately.

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