Question

Different type of structures of polypropylene that may be formed during polymerisation

Answer 1

Polypropylene belongs to the group of polyolefins and is partially crystalline and non-polar. Its properties are similar to polyethylene, but it is slightly harder and more heat resistant. It is a white, mechanically rugged material and has a high chemical resistance.[1] Polypropylene is the second-most widely produced commodity plastic(after polyethylene) and it is often used in packaging and labeling. In 2013, the global market for polypropylene was about 55 million tonnes.[2]