The structure of butadiene is shown. H H H₂C CH₂ This alkene undergoes addition polymerization to form polybutadiene, a polymer used in the manufacture of tires. Draw a segment of polybutadiene containing three monomer units. Connect each end of the segment with a bond to one of the R groups. The R groups represent the connecting carbon atoms in the monomers adjacent to the segment. Be sure to draw all hydrogen atoms.

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Polymers

Polymers are naturally occurring or synthetically produced large molecules or compounds which are made up of series of repeating units called monomers. They are joined together by chemical bonds. The term polymer is coined from Greek roots meaning 'many parts' and are found almost everywhere from the plastics bags to the rubber of our tires to our DNA strands.