Perfluoroalkyl end-functionalized polystyrene show lower glass transition temperatures. DSC and optical transmission studies

DSC thermograms of PSC13 polymers with varying molecular weights.PSC13- 10k (Blue), PSC13-15k (Green), PSC13-30k (Pink). The data indicate decreases in glass-transition temperature that increase with increasing perfluorocarbon concentrations and chain lengths. The presence of an endotherm at 130 °C hints at semicrystalline behavior in the case of PSC13-10k only.90