Glucose derivative lactone-cyclic lactone polymer and preparation method thereof

[0034] The reaction process is: under a nitrogen atmosphere, add 49.87mL (0.5mol) of caprolactone and 0.15mL of stannous octoate / toluene solution into the flask, heat up to 130°C, add 0.17mL of diethylene glycol, and react for 48 After hours, the solvent was removed in vacuo to yield polycaprolactone. The Fourier infrared data of the obtained product are as follows. From the infrared data, it can be seen that the polymerization of caprolactone was successful. FT-IR data are as follows figure 1 Shown: ν(cm -1 ): 3,548.60, 2946.05, 2866.16, 1724.31.

[0035] Embodiment 2 Preparation of glucose derivative lactone-cyclic lactone polymer of the present invention

[0036] The reaction process is: under a nitrogen atmosphere, 49.87mL (0.45mol) of ε-caprolactone, 8.91g (0.05mol) of gluconolactone (glucolactone: ε-caprolactone = 1:9), 1.7 g (0.008mol), heated up to 140°C, added 0.18mL (1.8mmol) of diethylene glycol, and reacted for 24 hours to obtain a copolymer of gluconolactone and caprolactone. The obtained product can be seen from the infrared data that butyl stannic acid catalyzes the successful copolymerization of gluconolactone and caprolactone. FT-IR data are as follows figure 2 Shown: ν(cm -1 ): 3,436, 3392, 2946, 2867, 1727, 1294-1185.

[0037] Embodiment 3 Preparation of glucose derivative lactone-cyclic lactone polymer of the present invention

[0038] The reaction process is: under an argon atmosphere, 44.33mL (0.4mol) of ε-caprolactone, 17.81g (0.1mol) of gluconolactone (gluconolactone: ε-caprolactone = 2:8), butyl stannic acid 2.6g (0.012mol), heated up to 150°C, added 0.15mL (2.69mmol) of ethylene glycol, and reacted for 12 hours to obtain a copolymer of gluconolactone and caprolactone. The obtained product can be seen from the infrared data, butyl stannic acid catalyzed the copolymerization of gluconolactone and caprolactone successfully. FT-IR data are as follows figure 2 Shown: ν(cm -1 ): 3,384, 2946, 2868, 1731, 1294-1186.