The structure of propylene is shown. This alkene undergoes addition polymerization to form polypropylene, a thermoplastic polymer with many different applications. Propylene has the structure CH2- HC=C-H3. There is a double bond between the first and second carbon.

question:
Draw a segment of polypropylene containing three monomer units connected head‑to‑tail. Connect each end of the segment with a bond to one of the R groups that are already drawn. The R groups represent the connecting carbon atoms in the monomers adjacent to the segment.
Drawing needed: