The expected reactivity of the monomers shown | vedclass

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(A) Cationic polymerization proceeds via the formation of a carbocation intermediate. The rate of polymerization is directly proportional to the stabi

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$I < II < III < IV$

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(A) Cationic polymerization proceeds via the formation of a carbocation intermediate. The rate of polymerization is directly proportional to the stability of the carbocation formed.The stability of the resulting carbocations is as follows:$I: CH_3O_2C-CH_2-CH_2^+$ (destabilized by $-I$ and $-M$ effects of the ester group)$II: Cl-CH_2-CH_2^+$ (destabilized by $-I$ effect of $Cl$)$III: CH_3-CH_2-CH_2^+$ (stabilized by $+I$ effect of the methyl group)$IV: Ph-CH_2-CH_2^+$ (highly stabilized by resonance with the phenyl ring)Thus,the stability order is $I < II < III < IV$. Consequently,the reactivity order for cationic polymerization is $I < II < III < IV$.

The expected reactivity of the monomers shown below towards cationic polymerization follows the order:
$I: CH_2=CH-CO_2CH_3$
$II: CH_2=CH-Cl$
$III: CH_2=CH-CH_3$
$IV: CH_2=CH-Ph$

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The expected reactivity of the monomers shown below towards cationic polymerization follows the order:$I: CH_2=CH-CO_2CH_3$$II: CH_2=CH-Cl$$III: CH_2=CH-CH_3$$IV: CH_2=CH-Ph$