The reaction order and mechanism were different with both benzoin ethyl ether and benzophenone when Thiol/ Ene system under different wavelength ultraviolet.

• 发现无论以二苯甲酮或是安息香乙醚为光敏剂，硫醇/体系在不同波长紫外光作用下，反应级数不同，反应机理也不同。