Question

Answer the following.

Write structure of natural rubber and neoprene rubber along with the name and structure of their monomers.

Answer 1

Natural rubber	Neoprene
Monomer:  \[\begin{array}{cc} \ce{CH3\phantom{....}}\\ |\phantom{......}\\ \phantom{.}\ce{CH2 = \underset{Isoprene}{C - CH} = CH2} \end{array}\]	Monomer: \[\begin{array}{cc} \ce{Cl\phantom{.......}}\\ |\phantom{........}\\ \ce{CH2 =\underset{Chloroprene}{C - CH} = CH2} \end{array}\]
Structure of natural rubber: \[\begin{bmatrix}\begin{array}{cc} \ce{H\phantom{............}}\ce{H}\\ |\phantom{.............}|\\\ce{- C - C = C - C -}\\ |\phantom{....}|\phantom{....}|\phantom{....}|\\ \phantom{}\ce{H\phantom{..}} \ce{CH3\phantom{..}} \ce{H\phantom{...}} \ce{H} \end{array}\end{bmatrix}_\text{n}\]	Structure of neoprene: \[\begin{array}{cc} \ce{Cl\phantom{.......}}\\ |\phantom{........}\\ \ce{-[CH2 - C = CH - CH2]_{n}}- \end{array}\]