用UV光照法将两种亲水性单体(甲基丙烯酸和丙烯酰胺)分别接枝到非亲水性的聚丙烯板表面上。以二苯酮为光敏剂,丙酮为溶剂,在不断通入氮气的条件下,采用汽-固相接枝法,可以一次完成双面接枝。电子能谱(ESCA)的结果证实了光接枝的成功。水接触角测试结果表明,接枝后的聚丙烯表面具有良好的亲水性。利用水溶性的染料(结晶紫和罗丹明B)对接枝后的聚丙烯板进行了染色,并测定了吸收光谱和荧光光谱。 Two hydrophilic monomers (methacrylic acid and acrylamide) were grafted onto the surface of a non-hydrophilic polypropylene plate by UV irradiation respectively. With benzophenone as the photosensitizer and acetone as the solvent, the double-sided grafting can be completed in one pass using the vapor-solid phase grafting method under the continuous nitrogen gas inflow. The results of electron spectroscopy (ESCA) confirmed the success of photo-grafting. Water contact angle test results show that the grafted polypropylene surface has good hydrophilicity. Grafted polypropylene sheets were stained with water-soluble dyes (Crystal Violet and Rhodamine B), and the absorption and fluorescence spectra were measured.