Chapter 30, Problem 30.31P

Interpretation Introduction

(a)

Interpretation: A short segment of isotactic poly(vinyl chloride) is to be drawn.

Concept introduction: Isotactic, syndiotactic, and atactic are three different configuration of polymers, which are synthesized from monosubstituted alkene monomers $\left({\text{CH}}_{\text{2}}=\text{CHZ}\right)$. All the $\text{Z}$ groups of an isotactic polymer are present on the same side of the carbon backbone.

Interpretation Introduction

(b)

Interpretation: A short segment of syndiotactic polyacrylonitrile is to be drawn.

Concept introduction: Isotactic, syndiotactic, and atactic are three different configuration of polymers, which are synthesized from monosubstituted alkene monomers $\left({\text{CH}}_{\text{2}}=\text{CHZ}\right)$. The $\text{Z}$ groups of a syndiotactic polymer alternate from one side of the carbon backbone.

Interpretation Introduction

(c)

Interpretation: A short segment of atactic polystyrene is to be drawn.

Concept introduction: Isotactic, syndiotactic, and atactic are three different configuration of polymers, which are synthesized from monosubstituted alkene monomers $\left({\text{CH}}_{\text{2}}=\text{CHZ}\right)$. All the $\text{Z}$ groups of atactic polymer present randomly on the carbon backbone.