Novel star-shaped thermosetting resins were synthesized by condensation-reaction of itaconic acid and glycerol, followed by treatment of the oligomers, by methanol and allyl alcohol. Employing ¹H and ¹³C NMR and FT-IR, the chemical structures of the resins were studied. The thermomechanical properties were evaluated by Differential Scanning Calorimetry (DSC) and Dynamic Mechanical Analysis (DMA). Viscometry and thermogravimetric analyses (TGA) were also employed to study the rheological and thermal properties of samples. The viscosity of the methanol-treated resin was 4.2 Pa s at 25 °C, which dropped to 0.25 Pa s at 70 °C. The allyl alcohol-treated resin showed a lower viscosity (1.8 Pa s at room temperature, and 0.14 Pa s at 70 °C). A substantially higher glass temperature (T_g) was recorded for methanol-treated resin (150 °C) compared to that of the allyl alcohol-treated resin (93 °C). Compared to the allyl alcohol-treated resin, very good mechanical properties for the methanol-treated resin was achieved, in terms of storage modulus, (61% higher G′). Excellent environmental profile (i.e. high biobased contents and biodegradability), inexpensive raw materials, along with promising rheological and thermomechanical properties are advantages of these novel resins, which make the resins comparable with, and superior in some aspects, to other thermosetting systems.

通过衣康酸和甘油的缩合反应，然后用甲醇和烯丙醇处理低聚物，合成了新型星形热固性树脂。利用¹ H和¹³ C NMR和FT-IR对树脂的化学结构进行了研究。通过差示扫描量热法（DSC）和动态力学分析（DMA）评估热机械性能。粘度和热重分析（TGA）也用于研究样品的流变学和热学性质。经甲醇处理的树脂的粘度在25°C下为4.2 Pa s，在70°C下下降至0.25 Pa s。经烯丙醇处理的树脂显示出较低的粘度（室温下为1.8 Pa s，在70°C下为0.14 Pa s）。明显更高的玻璃温度（T甲醇处理的树脂（150°C）与烯丙醇处理的树脂（93°C）相比，记录了_g）。与烯丙醇处理的树脂相比，就储能模量而言，甲醇处理的树脂具有非常好的机械性能（G'高61％）。这些新型树脂的优点是具有优异的环境特性（即高的生物基含量和生物降解性），廉价的原料以及有希望的流变和热机械性能，这些优点使这些树脂可与其他热固性体系相媲美，并在某些方面优于其他热固性体系。