Question

 What type of intermolecular force leads to high density polymer?​

Answer 1

Answer:

HDPE mostly features a low degree of branching where the linear molecules or the polymer chains are packed together tightly. The presence of a strong intermolecular force results in a dense, highly crystalline material. However, the true mechanism of the synthesis of high-density polyethylene is still a debated topic.

Answer 2

Answer:

Dispersion forces

High-density polyethylene (HDPE) has greater rigidity, strength, and melting point than low-density polyethylene (LDPE). Dispersion forces are stronger along polymer chains than among branches. More than 60,000 synthetic polymers are known.