The development of photo-controlled adhesives can overcome the problems associated with daily lives and industrial applications. Adhesion is a multidiscipline field of engineering, physics, and chemistry. The solid-to-liquid transformation of light-controlled adhesives can be used for direct bonding onto diverse surfaces. Here, a photoresponsive azobenzene compound is developed for photo-controlled adhesion. The azobenzene compound 4, 4'-hexyl diacrylate-3-methylazobenzene (M1) exhibits photoinduced solid-to-liquid transition due to trans–cis photoisomerization. The prepolymer coating based on the azobenzene compound M1 is prepared on an adhesive surface. After UV irradiation, the solid coating was quickly transformed into liquid for adhesion. This photo-controlled adhesive has strong adhesion to different surfaces.

光控粘合剂的开发可以克服与日常生活和工业应用相关的问题。粘附力是工程，物理和化学的多学科领域。光控粘合剂的固液转变可用于直接粘合到各种表面上。在此，开发了一种光响应性偶氮苯化合物，用于光控粘合。由于反式-顺式光异构化，偶氮苯化合物4、4'-二丙烯酸己酯-3-甲基偶氮苯（M1）表现出光诱导的固液转变。基于偶氮苯化合物M1的预聚物涂料在粘性表面上制备。紫外线照射后，固体涂层迅速转变为液体以粘附。这种光控粘合剂对不同表面具有很强的粘合力。