A series of hyperbranched polyesters were incorporated by the chemical reaction of the dimethylolpropionic acid with trimethylolpropane, pentaerythritol, and glycerol as the core group. The castor oil-based fatty acids were also successfully prepared in order to examine the impact of the biopolyols on the thermo-mechanical characteristics of the hyperbranched waterborne polyurethane. The chemical structure of the polyols and the resulting polymer were characterized. Developing −OH functionality of the polyols the polyurethanes represented an improvement in crosslinking density, leading to increasing T_g, tensile modulus, and tensile strength and a decrease in elongation and toughness. Thus, the overall results forward the synthesized HBWPU as a potent sustainable and eco-friendly polymeric material by a simple approach that possesses a higher degree of sustainability over a purely petrochemical route.

通过二羟甲基丙酸与三羟甲基丙烷，季戊四醇和甘油作为核心基团的化学反应，引入了一系列超支化聚酯。还成功制备了基于蓖麻油的脂肪酸，以检查生物多元醇对超支化水性聚氨酯热机械特性的影响。表征了多元醇和所得聚合物的化学结构。发展多元醇的-OH官能度，聚氨酯表现出交联密度的改善，从而导致T _g增加，拉伸模量和拉伸强度以及伸长率和韧性的降低。因此，总体结果通过一种简单的方法将合成的HBWPU作为一种有效的可持续性和环保聚合物材料向前发展，该方法在纯石油化工路线上具有更高的可持续性。