Photoinduced grafting-to procedure

Few investigations have described the photoinduced modification of substrates with the emplo5rfnent of azido- or anthraquinone-derived polymers. 

Azido photochemistry was frequently used to introduce functional groups onto polymeric substrates. It is also the main so-called grafting-to technique usually used to efficiently modify or functionalize surfaces [HAR 91, THO 98, ZIA 99]. This method was employed to covalently graft carbohydrates [KNA 01] or polysaccharides [BAR 01, BHA 08] containing azide groups to polymer substrates and was successfully used to modify a wide range of other substrates such as glass, tin oxide, silicon and aluminum. 

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