Polymers Class 12 Notes


The polymers are defined as high molecular mass macromolecules which consists of repeating structural units derived from appropriate monomers. The process of formation of polymers from the respective monomers is called polymerization.

Classification of polymer on the basis of source

  • Natural polymer
  • Semi-synthetic polymer
  • Synthetic polymer

Classification based on structure

  • Linear polymer
  • Branched chain polymer
  • Cross linked polymer

Classification based on the mode of polymerization

  • Addition polymer
  • Condensation polymer

Classification based on molecular force

  • Fibres
  • Elastomers
  • Thermosetting plastics
  • Thermoplastics

Examples of important polymers

  • Natural Rubber
  • Synthetic rubber
  • Buna rubbers
  • Buna -S
  • Teflon
  • Nylon -66
  • Dacron

Polymer is considered as one of the most important chapters in CBSE class 12 and students should be well acquainted with all the concepts of polymer to be able to understand all the related topics in this chapter. The Polymers Class 12 Notes is given here so that students can understand the chapter in a better way.

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Schottky defect generally appears in

[DCE 2004]