Fluorinated phosphonium salts are linked to a diazirine moiety. A carbene precursor was photochemically generated from the diazirine to covalently attach the salt to substrates e.g., cotton and paper. Surface-coated substrates were found to have anti-wetting properties e.g., water contact angles of over 130° and 20° for cotton and paper, respectively. The covalent attachment was by photochemical activation, so the grafting method permits photo-patterning of the coating.
氟磷酸铵盐与二氮杂环结构相连。从二氮杂环中光
化学生成卡宾前体,以共价键的方式将盐粘附到基底上,例如棉花和纸张。表面涂层基底具有抗润湿性,例如棉花和纸张的
水接触角分别超过130°和20°。共价键的形成是通过光
化学活化实现的,因此嫁接方法允许光图案化涂层。