See explanation below.
Work Step by Step
1 The two major types of reaction processes that form synthetic polymers lend their names to the resulting classes of polymer—addition and condensation. 2 Addition polymers form when monomers undergo an addition reaction with one another. These substances are also called chain-reaction (or chain-growth) polymers because as each monomer adds to the chain, it forms a new reactive site to continue the process. 3 The monomers of condensation polymers must have two functional groups; we can designate such a monomer as A-R-B (where A and B may or may not be the same, and R is the rest of the molecule).