ABD-grafted polymers

Two types of ABD-grafted PMMA were initially prepared with different polar and electronic substituents (Fig. 2). ABD-grafted polymer 1 contains no substituent in the azobenzene para position while polymer 2 contains a para nitro group. Potentially, two synthetic routes are possible to generate ABD-grafted PMMA. In approach PMMA is first synthesized and then the ABD is grafted onto the polymer chains. In another approach, ABD-grafted methylmethacrylate monomer units are first synthesized and then polymerized in a subsequent step. 

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