Firstly, Figure depicts the various results obtained for the copolymerization of substituted POT with styrene. For the addition of the styrene radical onto the C=S bond (kadd), it is observed that substitution with electron-withdrawing groups increases the rate constant of addition. The stronger the electronic effect of the group, the greater the value: CF3-POT < CN-POT < NO2-POT. The opposite trend is observed for electron-donating groups. The OMe group leads to the lowest rate constant of addition. In contrast, the effects of the Me and t-Bu groups are nearly identical. The impact of electron-withdrawing groups on the rate constant of addition is more pronounced compared to electron-donating substituents. The opposite phenomenon is observed for the rate constant of reverse addition (k-add); the more electron-donating the substituent, the higher the rate constant of reverse addition.