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Chapter 12: Problem 88

Write the chemical equation that represents the formation of (a) polychloroprene from chloroprene (polychloroprene is used in highway- pavement seals, expansion joints, conveyor belts, and wire and cable jackets) (b) polyacrylonitrile from acrylonitrile (polyacrylonitrile is used in home furnishings, craft yarns, clothing, and many other items).

Short Answer

Expert verified
The chemical equation for the formation of polychloroprene from chloroprene is: \(n\text{ }(CH_2=CCl-CH=CH_2)\rightarrow -(CH_2-CCl-CH-CH_2)_n- \) The chemical equation for the formation of polyacrylonitrile from acrylonitrile is: \(n\text{ }(CH_2=CH-CN)\rightarrow -(CH_2-CH-CN)_n- \)

Step by step solution

01

First, we need to know the structure of the monomers, chloroprene and acrylonitrile. Chloroprene is a vinyl monomer with the formula CH2=CCl-CH=CH2. Acrylonitrile is another vinyl monomer with the formula CH2=CH-CN. #Step 2: Identify the reactive groups and polymerization mechanism#

Both chloroprene and acrylonitrile contain a reactive double bond (C=C), and they will undergo addition polymerization to form polymers through opening the double bond. #Step 3: Write the chemical equation for the formation of polychloroprene from chloroprene#
02

Write the chemical equation

By breaking the double bond in chloroprene and creating a bond between repeated chloroprene molecules, we can write the equation for the formation of polychloroprene: \(n\text{ }(CH_2=CCl-CH=CH_2)\rightarrow -(CH_2-CCl-CH-CH_2)_n- \) where n represents the number of repeating chloroprene units, and these units are connected through the former double bonds. #Step 4: Write the chemical equation for the formation of polyacrylonitrile from acrylonitrile#
03

Write the chemical equation

By breaking the double bond in acrylonitrile and creating a bond between repeated acrylonitrile molecules, we can write the equation for the formation of polyacrylonitrile: \(n\text{ }(CH_2=CH-CN)\rightarrow -(CH_2-CH-CN)_n- \) where n represents the number of repeating acrylonitrile units, and these units are connected through the former double bonds.

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Most popular questions from this chapter

What evidence supports the notion that buckyballs are actual molecules and not extended materials? (a) Buckyballs are made of carbon. (b) Buckyballs have a well-defined atomic structure and molecular weight. (c) Buckyballs have a well-defined melting point. (d) Buckyballs are semiconductors. (e) More than one of the previous choices.

Aluminum metal crystallizes in a face-centered cubic unit cell. (a) How many aluminum atoms are in a unit cell? (b) What is the coordination number of each aluminum atom? (c) Estimate the length of the unit cell edge, \(a,\) from the atomic radius of aluminum (143 pm). (d) Calculate the density of aluminum metal.

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