Chemical Engineering - Polymer Technology - Discussion

Linear polymers: The polymers made up of long continuous chains without any branches are called linear polymers. They have high melting points, high densities and high tensile strength. Example: Polyethene, PVC.

Branched-chain polymers: The polymers made up of a main chain (linear chain) with smaller chains as branches of the main chain are called branched-chain polymers. They have lower melting points, densities, and tensile strength as compared to linear polymers.

Example: Polypropylene.

I think it is not correct answer.

Branched chair polymer have higher density.

Please tell me the correct answer.

The polymerization reaction of monomer leads the molecule to a branched chain polymer posses a weaker bond and makes the molecule more flexible. This is known as low density polyethylene (LDPE).

Linear structure of polymer is termed as HDPE.

I think higher melting point.

Explanation by - Mr. Ashish Bhai is 100% Right.
Hence option - C is correct .
Ldpe - Branched polymer
Hdpe - Linear (Long chain polymer)
So low density polymer should be Branched polymer.