a) Compare the characteristic features of polymerization by step-growth and chain- growth mechanisms. (b) Many alkene monomers (olefins) are readily polymerized by a free-radical mechanism. However, isobutylene is usually polymerized by a cationic mechanism. Explain.

a) Compare the characteristic features of polymerization by step-growth and chain- growth mechanisms. (b) Many alkene monomers (olefins) are readily polymerized by a free-radical mechanism. However, isobutylene is usually polymerized by a cationic mechanism. Explain.

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter8: Haloalkanes, Halogenation, And Radical Reactions

Section: Chapter Questions

Problem 8.34P

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Types of Polymers on the basis of Method of Preparation

Question

(a) Compare the characteristic features of polymerization by step-growth and chain-
growth mechanisms.
(b) Many alkene monomers (olefins) are readily polymerized by a free-radical
mechanism. However, isobutylene is usually polymerized by a cationic
mechanism. Explain.

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