Polyethylene (PE) (sometimes known as polythene) was discovered in 1933 by Reginald Gibson and Eric Fawcett at the British industrial giant, Imperial Chemical Industries (ICI). Although it is more than 70 years since it was first produced, it is still a very promising material. This widely used plastic is a polymer of ethylene, CH₂=CH₂, having the formula (-CH₂CH₂-)n. It is produced at …