Class 12 Chapter 15 Polymers

 

INTRODUCTION

The word ‘polymer’ is composed of two Greek words: poly means many and mer means units or parts. Polymers are very large molecules with high molecular mass (103 -107u). These are also referred to as macromolecules, which are formed by the joining of repeating structural units on a very large scale. The repeating structural units are obtained from some simple and reactive molecules known as monomers and are linked to each other by covalent bonds. The process by which polymers are synthesized from their respective monomers is known as polymerisation.

The widespread use of polymers in the manufacture of plastic buckets, cups and saucers, children’s toys, packaging bags, synthetic clothing materials, automobile tyres, gears and seals, electrical insulating materials and machine parts has completely revolutionised daily life as well as the industrial scenario. Indeed, polymers have become the backbone of four major industries viz. plastics, elastomers, fibres and paints and varnishes.

CONTENT

Classification of Polymers

Types of Polymerisation Reactions

Molecular Mass of Polymers

Biodegradable Polymers

Polymers of Commercial Importance

 

class 12 chemistry notes chapter 15 Polymers

Link to the playlist of the Chapter- Polymers –

https://www.youtube.com/watch?v=fOjYWo9lAKY&list=PLAVY2tu_2M4iFDRRtfrjH8iRXpV_9SU3_