Polymerization

Which of the following statements best describes addition polymerization?

• It involves the elimination of small molecules like water.

• It requires a monomer with two or more functional groups.

• It involves a reaction in which monomers with double bonds open up to form a polymer chain.

• It involves a step-by-step reaction between monomers with the release of energy.

During condensation polymerization, what is typically released as a byproduct?

• • Heat

• • An inert gas

• • Unreacted monomers

• • Small molecules, such as water or methanol

Which of the following monomers is most likely to undergo addition polymerization?

• • Ethylene (C₂H₄)

• • Hexamethylenediamine

• • Nylon

• • Polystyrene

Identify the key difference between addition and condensation polymerization.

• • Addition polymerization requires a catalyst, while condensation polymerization does not.

• • Condensation polymerization forms polymers with higher molecular weights than addition polymerization.

• • Condensation polymerization involves the loss of small molecules, while addition polymerization does not.

• • Addition polymerization is a slower process compared to condensation polymerization.

Which of the following polymers is an example of a condensation polymer?

• • Nylon-6,6

• • Polyethylene

• • Polyvinyl chloride (PVC)

• • Polystyrene

In which type of polymerization does the molecular weight of the polymer increase rapidly at the initial stages of the reaction?

• • Condensation polymerization

• • Emulsion polymerization

• • Step-growth polymerization

• • Addition polymerization

Why is it that condensation polymers often contain heteroatoms in their backbone structure?

• • Condensation polymerization only uses inorganic monomers.

• • Due to the involvement of functional groups like amines, acids, or alcohols in the reaction.

• • Because theCondensation polymers do not contain heteroatoms.y are derived from alkenes.

What phase is used in bulk polymerization?

Key requirement for heat control in bulk polymerization?

Main byproduct in suspension polymerization?