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Chapter 26: Q22P (page 1342)

Polychloroprene, commonly known as neoprene, is widely used in wetsuits and in rubber parts that must withstand exposure to gasoline or other solvents.

(a) Is neoprene an addition polymer or a condensation polymer?

(b) What monomer is used to make this synthetic rubber?

Short Answer

Expert verified

(a) Polychloroprene which is commonly known as neoprene is an addition polymer.

(b)Polychloroprene comes from the diene, chloroprene, just as natural rubber comes from isoprene.


Step by step solution

01

Step-1. Explanation of part (a):

Addition polymer is a polymer that is formed by linkage of monomers without co-generation of other products. It is formed by chain addition reactions between monomers that contain a double bond. Polychloroprene which is commonly known as neoprene is an addition polymer of chloroprene.

02

Step-2. Explanation of part (b):

Polychloroprene comes from the diene, chloroprene, just as natural rubber come from isoprene. Chloroprene is obtained by the chlorination of butadiene or isoprene. Of the several structures adopted by the chloroprene repeating unit, the most common is trans-1,4-polychloroprene. The polymer tends to crystallise and harden slowly at lower temperatures.

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