- Introduction
- Rest time! Have fun
- Physics
- Chemistry
- BIOLOGY
- Reaching the age of Adolescence
- CROP PRODUCTION AND MANAGMENT
- Cells : The basic structural unit of life
- Nutrition in human beigns
- RESPIRATION IN HUMAN BEIGNS
- TRANSPORTATION IN HUMAN BEIGNS
- excretory system in human beigns
- NERVOUS SYSTEM
- PHOTOSYNTHESIS
- Respiration in plants
- REPRODUCTION IN PLANTS
- MOVEMENTS IN PLANTS
- Forest our lifeline
- WASTE WATER STORY
- WEATHER,CLIMATE AND ITS ADAPTATION .
- Reaching the age of Adolescence
- Model tests
- Animation time
Synthetic fibres and plastics
Polymers and Monomers
lPolymers is the long chain of small units.
lPolymers is actually a Greek word made up of Poly means many and mer means simple units.
lEg- PVC, PAN , Teflon , Polyethene,etc
l
The simple substances which are used to make polymers is known as monomer
Polymerization
lThe process of converting monomers into polymers is known as polymerization.
Eg-
1. Esters are used to make polyester
2.Ethylene is used to make polyethylene
3.Amino acids are used to make proteins
4.Glucose is used to make Cellulose
Types of polymers
Three types of polymers
1.Natural polymers
2.Synthetic polymers
3.Semi-Synthetic polymers