NCERT Books Free Download for Class 12 Chemistry Chapter 15 - Polymers

The various impact topics discussed in Chapter 15 of NCERT for Class 12 Chemistry are:

• Atomic Structure and Spectroscopy of Atoms

• Chemical Kinetics 

• Chemical Reactions 

• Semiconductors, Semimetals, & Insulators 

• Solvents and Intermolecular Forces 

• Aqueous Solutions, Acids & Bases, Lewis Acids & Bases, Ionic Equations for Basic Chemistry Problems in Aqueous Media

You can download the free NCERT Books download for Class 12 Chemistry Chapter 15 - Polymers on Vedantu. Students can also download the NCERT Textbooks Solutions in PDF for Class 6 to 12 all subjects. Register for Chemistry tuition to clear your doubts and score more in your exams.

Polymers are high molecular mass macromolecules, which consist of repeating structural units derived from monomers. Polymers have a high molecular mass (103-107 u). In a polymer, various monomer units are joined by strong covalent bonds. These polymers can be natural as well as synthetic. Polythene, rubber, and nylon 6, 6 are examples of polymers.

Thermoplastic polymers are linear (slightly branched) long-chain polymers, which can be repeatedly softened and hardened on heating. Hence, they can be modified again and again. Examples include polythene, polystyrene.

Thermosetting polymers are cross-linked or heavily branched polymers that get hardened during the molding process. These plastics cannot be softened again on heating. Examples of thermosetting plastics include bakelite, urea-formaldehyde resins.

Based on the magnitude of intermolecular forces present in polymers, they are classified into the following groups: 

• Elastomers

• Fibers

• Thermoplastic polymers

• Thermosetting polymers