In a two-necked round-bottomed flask, the functionalized PBAT oligomer was dissolved in a minimum of chloroform and was poured into 1-propanethiol under a flow of argon (Figure ). TEA was added until a pH of the liquid phase of 8 was reached. The reaction mixture was stirred overnight at room temperature under a flow of argon and was then precipitated in nhexane. The solid was filtered, washed with n-hexane and dried under at 50 °C for approximately 15 hours. OligoPBAT-dithiol was recovered as a pale-yellow powder.