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Chapter 12: Problem 80

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 equations for the formation of polychloroprene from chloroprene and polyacrylonitrile from acrylonitrile are as follows: a) Polychloroprene: \[\text{n} \ \text{CH}_2= \text{C}(\text{Cl})\text{-CH=CH}_2 \rightarrow [-\text{CH}_2 - \text{C}(\text{Cl})\text{-CH}-\text{CH}_2 -]_n\] b) Polyacrylonitrile: \[\text{n} \ \text{CH}_2= \text{CH} - \text{C}\equiv\text{N} \rightarrow [-\text{CH}_2 -\text{CH}-\text{C}\equiv\text{N}-]_n\]

Step by step solution

01

Write the chemical structure of chloroprene

Chloroprene has the following chemical structure: \[\text{CH}_2= \text{C}(\text{Cl})\text{-CH=CH}_2\]
02

Represent the polymerization reaction

To represent the polymerization reaction, we illustrate the process in which the double bond between the carbons in chloroprene molecules break and links up with other chloroprene molecules to form polychloroprene. Thus, the chemical equation for this process is: \[\text{n} \ \text{CH}_2= \text{C}(\text{Cl})\text{-CH=CH}_2 \rightarrow [-\text{CH}_2 - \text{C}(\text{Cl})\text{-CH}-\text{CH}_2 -]_n\] b) Formation of polyacrylonitrile from acrylonitrile:
03

Write the chemical structure of acrylonitrile

Acrylonitrile has the following chemical structure: \[\text{CH}_2= \text{CH}-\text{C}\equiv\text{N}\]
04

Represent the polymerization reaction

To represent the polymerization reaction, we demonstrate the process in which the double bond between the carbons in acrylonitrile molecules breaks and connects with other acrylonitrile molecules to form polyacrylonitrile. Thus, the chemical equation for this process is: \[\text{n} \ \text{CH}_2= \text{CH} - \text{C}\equiv\text{N} \rightarrow [-\text{CH}_2 -\text{CH}-\text{C}\equiv\text{N}-]_n\] Now we have the chemical equations that represent the formation of polychloroprene from chloroprene and polyacrylonitrile from acrylonitrile.

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