Abstract
2,2′-Dimethylazobenzenes having metal chelating ligands at meta-positions were synthesized, and the interaction with metal ions were estimated for syn- and anti-ligands on thermal isomerization. The azobenzenes with the metal-interaction were transformed to vinyl azobenzenes and copolymerized with styrene. The metal extracting ability was found in photo-isomerized polymer having syn-bis(iminodiacetic acid) groups; the selectivity was high for Cu(II) ion.
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