Rosin-based bisphenol A (BPA) molecular imprinted polymer (P-MIP) microspheres were prepared by suspension polymerization using rosin-based isophorone diisocyanate polyurethane as the primary monomer, methacrylic acid as the functional monomer, and BPA as the template molecule. The structure, morphology, particle size and adsorption properties of the microspheres were characterized and analyzed by means of infrared spectroscopy, scanning electron microscopy, laser particle size analysis and ultraviolet-visible spectrophotometry. The results showed that the imprinted microspheres exhibited a spherical shape with an average particle size of 123 μm. The adsorption behavior of BPA on the P-MIP microspheres followed a pseudo-first-order kinetic model, corresponding to physical adsorption. The isothermal adsorption model conformed to the Freundlich model, indicating that the binding sites were non-uniform. The imprinting factors (σ) of the P-MIP microspheres for BPA, para-tert-butyl phenol, hydroquinone and phenol were 2.69, 1.53, 1.26 and 1.10, respectively, indicating that the P-MIP microspheres had specific adsorption properties for BPA. After the imprinted microspheres were repeatedly used for five times, the adsorption rate was 96%, indicating good repeatability.

松香基双酚A（BPA）分子印迹聚合物（P-MIP）微球是通过以松香基异佛尔酮二异氰酸酯聚氨酯为主要单体，甲基丙烯酸为功能性单体和BPA为模板分子的悬浮聚合制备的。通过红外光谱，扫描电子显微镜，激光粒度分析和紫外可见分光光度法对微球的结构，形态，粒径和吸附性能进行了表征和分析。结果表明，压印的微球呈球形，平均粒径为123μm。BPA在P-MIP微球上的吸附行为遵循伪一级动力学模型，与物理吸附相对应。等温吸附模型符合Freundlich模型，表明结合位点不均匀。烙印因素（BPA的P-MIP微球，对叔丁基苯酚，对苯二酚和苯酚的σ）分别为2.69、1.53、1.26和1.10，表明P-MIP微球对BPA具有特定的吸附特性。压印的微球重复使用五次后，吸附率为96％，表明重复性良好。