Chapter 26.2B, Problem 26.5P

Interpretation Introduction

Interpretation: The monomer which polymerizes well on treatment with ${\text{BF}}_3$ is to be predicted.

Concept Introduction: The monomer which contains electron donating substituent in its structure can polymerize well in the presence of ${\text{BF}}_3$ because electron donating group stabilizes the cation formed in the cationic polymerization with ${\text{BF}}_3$ which cannot be done in the case of electron withdrawing substituent.

To determine: The monomer which polymerizes well with ${\text{BF}}_3$ out of the given monomers.