Degradation studies. Since we know that POT is efficiently inserted into polymer chains for both styrene and isobornyl acrylate, we then focused on the properties of the materials and in particular their degradation conditions. Unlike DOT, 36 the POT monomer is more soluble in both styrene and isobornyl acrylate. We used the procedure already reported by Johnson et al. to determine precisely its solubility in styrene. At room temperature, the POT solubility in styrene is 24 mol% that is drastically higher than DOT solubility in styrene (2.7 mol%). This will help us to target high molecular weight polymers. We then prepared two virgin polymers of PS and PIBA with 5 mol% of POT at 80ºC. The polymerizations were first performed for 15 h at 80 ºC initiated with 0.2 mol% AIBN to increase the molecular weight. The polymerization of styrene was performed in bulk whereas the one of isobornyl acrylate was performed with 30 mol% of anisole. Conversions were close to 94% for styrene and 85% for IBA. The characteristics of the polymers are gathered in Table . The degradation of the copolymers was then studied using accelerated chemical conditions. The result of the degradation is presented in Figure . We first used the classic basic degradation using KOH 5 wt% in THF/MeOH for 17 hours. For both copolymers, we observed a complete degradation that led to oligomers of Mn = 2,800 g.mol -1 and 3,800 g.mol -1 for PS and PIBA, respectively. Aminolysis of PIBA via iPrNH2 following the protocol of Roth gives similar degraded products. Unlike P(S-co-DOT), the incorporation of POT in polystyrene led only to partial aminolysis using the same protocol. We could expect a better accessibility due to more flexible C4 alkyl moiety compared to the rigid bis-aromatic structure of DOT. When more drastic conditions (100 % n-butylamine at 50ºC for 15 hours) were used for aminolysis that led to the total degradation of the P(S-co-DOT), we also observed the total degradation of the P(S-co-POT).