A novel bio-based polymeric surfactant P(AESO-PEGMA) derived from soybean oil has been synthesized. The molecular structure of P(AESO-PEGMA) was characterized by using a combination of ¹H nuclear magnetic resonance (¹H NMR) spectroscopy, fourier transform infrared (FT-IR) spectroscopy and gel permeation chromatography (GPC). And the surface activities of P(AESO-PEGMA) were investigated by using the method of surface tension, its critical micelles concentration (cmc) is 0.096 g L⁻¹, indicating the excellent surface activities. Stable soybean oil-in-water emulsions stabilized by P(AESO-PEGMA) were obtained at a low concentration of 0.1 g L⁻¹, and their properties were investigated by a laser particle size analyzer and an optical microscope. The stability of soybean oil-in-water emulsions increases with increasing P(AESO-PEGMA) concentration. Importantly, the soybean oil-in-water emulsions can remain stable for at least 12 months when the concentration is larger than 0.3 g L⁻¹, which reveals the outstanding emulsification of P(AESO-PEGMA) to soybean oil. Besides, the emulsions prepared from castor oil, N-hexane, toluene and turpentine verify the fact that the excellent emulsifying ability of P(AESO-PEGMA) to soybean oil may attribute to the similarity compatibility at a certain extend.

合成了一种从豆油中提取的新型生物基高分子表面活性剂P（AESO-PEGMA）。P（AESO-PEGMA）的分子结构通过结合¹ H核磁共振（¹ H NMR）光谱，傅立叶变换红外（FT-IR）光谱和凝胶渗透色谱（GPC）进行表征。并采用表面张力方法研究了P（AESO-PEGMA）的表面活性，其临界胶束浓度（cmc）为0.096 g L ^-1，显示了优异的表面活性。以0.1 g L ^-1的低浓度获得了通过P（AESO-PEGMA）稳定的稳定的大豆水包油乳液，并通过激光粒度分析仪和光学显微镜研究了它们的性质。大豆水包油乳液的稳定性随P（AESO-PEGMA）浓度的增加而增加。重要的是，当浓度大于0.3 g L ^-1时，大豆水包油乳化液可保持稳定至少12个月，这表明P（AESO-PEGMA）向大豆油的出色乳化作用。此外，由蓖麻油，N-己烷，甲苯和松节油制备的乳液证明了P（AESO-PEGMA）对大豆油的优异乳化能力可能在一定程度上归因于相似相容性。