The Tg decrease is more pronounced for formulations based on PHO-hexyl than on PHO-diol ones. It can also be noted that formulations containing PHO-hexyl have Tg comparable to those based on the conventional and commercial plasticizer mixture DPHP:DIDP. Indeed, the Tg decreases by only 20 °C for 45 wt% of PHO-diol (Tg = 63 °C), whereas it decreases by 50 °C for 30 wt% PHO-hexyl (Tg = 32 °C).