Synthesis and properties of deuterated polystyrene

Deuterated poly(vincylcyclohexane) (D-PVCH, C8H8D6) was successfully prepared via deuterated catalytic technology of polystyrene(PS). The structure of D-PVCH was characterized by FT-IR and 1HNMR spectroscopy, and the results show good agreement with the proposed structure and the deuterated ratio is 41.5%. DSC and TG analyses of the D-PVCH show that D-PVCH possesses good thermal stability (glass transition temperature of 125 ℃, 5% weight loss temperature of 403 ℃). Additionally, D-PVCH dissolves in common solvents such as petroleum ether, cyclohexane and toluene at room temperature. Compared with PS, D-PVCH possesses better thermal stability and improved solubility.