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NEET2004ChemistryPolymersActual

Which one of the following is a chain growth polymer?

Options

  1. AStarch
  2. BNucleic acid
  3. CPolystyrene
  4. DProtein

Correct answer

C. Polystyrene

Step-by-step solution

Polystyrene is an addition polymer that results when styrene monomers interconnect (polymerization). In the polymerization, the carbon-carbon bond of the vinyl group is broken and a new carbon-carbon bond is formed, attaching to the carbon of another styrene monomer to the chain. Related Theory In chain growth, the polymer chain always grows one monomer at a time. In step growth, the polymer chain doubles with each step. As a result, the rate of growth of the polymer chain is very different in these two cases. Chai

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