What is the structural difference between HDP and LDP? How does the structure account for different behaviour and nature hence use of polymer?

Explanation

LDP has a branched structure and hence does not pack well. As a result , it has low density. It is a transparent polymer of moderate tensile strength and high toughness. It is flexible and is a poor conductor of electricity. It is widely used as a packaging material (in the form of thin plastic films, bags etc.) , as insulation for electrical wires and cables , in the manufacturing of squeeze bottles , toys and flexible pipes. HDP , on the other hand , has linear structure and hence packs well. As a result, it has higher density and higher m.p. than LDP, It is a translucent polymer. It has greater toughness, hardness and tensile strength than LDP. It is used in the manufacture of containers (buckets , mugs ,tubs etc.) housewares , pipes , bottles and toys.