Question

how is addition polymerization different from condensation polymerization?
o during condensation polymerization, all the atoms in the monomer units are retained in the polymer; addition polymerization results in the loss of a small molecule, such as water.
o during addition polymerization, all the atoms in the monomer units are retained in the polymer; condensation polymerization results in the loss of a small molecule, such as water.
o during addition polymerization, the chain grows in one direction only; during condensation polymerization, the chain can grow in multiple directions.
o during condensation polymerization, the chain grows in one direction only; during addition polymerization, the chain can grow in multiple directions.

Explanation:

Addition polymerization involves monomers with double - bonds that open up and bond together, retaining all atoms of monomers in the polymer. Condensation polymerization involves the reaction of functional groups of monomers, with the elimination of a small molecule like water.

Answer:

During addition polymerization, all the atoms in the monomer units are retained in the polymer; condensation polymerization results in the loss of a small molecule, such as water.