In this study, a CO₂-assisted and environmentally friendly foaming approach was proposed to prepare amphiphilic open-cell poly(butylene succinate) (PBS)/glycerin monostearate (GMS)/chain extender (CE) foams with excellent adsorption capabilities and superhigh porosity. Compared with the torqued PBS foam, the hydrophilicity and cell stability of the PBS/GMS foam were markedly enhanced. With the gradual incorporation of CE, the crystallization temperature of diverse PBS/GMS/CE specimens increased from 79.2 °C to 92.1 °C, and their storage modulus rose by three orders of magnitude. When the CE content was 0.9 phr, the open-cell content of the PBS/GMS/CE3 foam reached 97.11 ± 0.67%. In addition, the adsorption capacity of PBS/GMS/CE3 foam was up to 34.33 ± 1.22 g/g for carbon tetrachloride, and its contact angle of water was 79.45°. To summarize, this study provided a promising strategy for fabricating multifunctional open-cell biodegradable polymer foams that could be applicable to wastewater treatment as well as filtration.

在本研究中，CO ₂提出了辅助和环境友好的发泡方法来制备具有优异吸附能力和超高孔隙率的两亲性开孔聚（丁二酸丁二醇酯）（PBS）/甘油单硬脂酸酯（GMS）/扩链剂（CE）泡沫。与扭转 PBS 泡沫相比，PBS/GMS 泡沫的亲水性和细胞稳定性显着增强。随着 CE 的逐渐加入，不同 PBS/GMS/CE 样品的结晶温度从 79.2 °C 上升到 92.1 °C，它们的储能模量上升了三个数量级。当CE含量为0.9phr时，PBS/GMS/CE3泡沫的开孔含量达到97.11±0.67%。此外，PBS/GMS/CE3泡沫对四氯化碳的吸附量高达34.33±1.22 g/g，与水的接触角为79.45°。总而言之，