Polymer surface modification method, obtained surface modified polymer and application thereof

The invention provides a polymer surface modification method, an obtained surface-modified polymer and application thereof. The modification method comprises the following steps: mixing a photoinitiator and a solvent, coating the mixture on the surface of the polymer, drying, and irradiating with ultraviolet light to obtain the surface-modified polymer, the photoinitiator is a photoinitiator containing a photoreactive group and a hydrophilic group. The polymer surface modification method can be completed under the condition of normal temperature only through ultraviolet irradiation for 1-600 s, required raw materials and equipment are few, the preparation process is simple and can be effectively combined with a polymer preparation process, and the polymer surface modification method can improve the hydrophilicity, pollution resistance and ion adsorption capacity of the polymer. 本发明提供一种聚合物表面改性方法、得到的表面改性的聚合物及其应用，所述改性方法包括以下步骤：光引发剂和溶剂混合，涂覆在聚合物表面，干燥，用紫外光照射，得到表面改性的聚合物；所述光引发剂为包含有光反应性基团和亲水基团的光引发剂。本发明所述聚合物表面改性方法在常温条件下