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Chapter 30: Question 30.27 (page 1225)

Draw the structure of the polymer formed by chain-growth polymerization of each monomer.

(a.)

(b.)

(c.)

(d.)

Short Answer

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Answer

(a.)

(b.)

(c.)

(d.)

Step by step solution

01

Chain-growth polymerization

Chain-growth polymerization is a chain reaction that converts an organic starting material, usually an alkene, to a polymer via a reactive intermediate鈥攁 radical, cation or anion.

Initiator is required to start the polymerization, then chain propagation takes place and finally, termination occurs when two radicals cartels to form bonds.

02

Monomers

In this question, 4 monomers are given i.e.,vinylidene fluoride, diethylorthoformate, crotonamide, and cyclohexymethanolate form polymers.

03

Polymer structure

a.

Vinylidene fluoride is polymerized by chain growth polymerization to form polyvinylidene fluoride.

Formation of polyvinylidene fluoride

b. Diethylorthoformate is polymerized by chain-growth polymerization to form polydiethylorthoformate.

Formation of polydiethylorthoformate

c. Crotonamide is polymerized by chain growth polymerization to form polycrotonamide.

Formation of polycrotonamide

d. Cyclohexymethanolate is polymerized by chain growth polymerization to form polycyclohexymethanolate.

Formation of polycyclohexymethanolate

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Most popular questions from this chapter

Draw the structures of Quiana and Nomex, two commercially available step-growth polymers formed from the given monomers. Nomex is a strong polymer used in aircraft tires and microwave transformers. Quiana has been used to make wrinkle-resistant fabrics.

(a.)

(b.)

Melmac, a thermosetting polymer formed from melamine and formaldehyde (CH2=O), is used to make dishes and countertops. Draw a stepwise mechanism for the condensation of one mole of formaldehyde with two moles of melamine, which begins the synthesis of Melmac.

In the presence of H3O+, 2-methylpropene oxide undergoes chain-growth polymerization such that nucleophilic attack occurs at the more substituted end of the epoxide. Draw a stepwise mechanism for this process, and explain this regioselectivity.

Draw the products of each reaction.

(a.)

(b.)

(c.)

(d.)

(e.)

(f.)

(g.)

(h.)

Explain why cationic polymerization is an effective method of polymerizing CH2=C(CH3)2 but notCH2=CH2 .
See all solutions

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