Question

how is plastic made ​

Answer 1

Plastics are derived from natural, organic materials such as cellulose, coal, natural gas, salt and, of course, crude oil. Crude oil is a complex mixture of thousands of compounds and needs to be processed before it can be used. The production of plastics begins with the distillation of crude oil in an oil refinery.

Answer 2

polythene is generally made by poly ethylene n by addition polymerization mechanism

-CH2-CH2-={-CH2-CH2-}n

polyethylene. polythene