synthesis and evaluation biological activity of some new polymers derived from 3,3’-dimethoxybiphenyl-4,4’-diamine

In this study, synthesis of polymer nanocomposites through the blending of prepared polymers with polyvinyl alcohol (a synthetic polymer) or chitosan (a natural polymer) then mixed with nano oxide silica by many steps. the new compound [i] was obtained via reaction of 3,3’-dimethoxybiphenyl-4,4’-diamine as starting material with malic anhydride in dmf then treatment with ammonium persulfate (nh4)2s2o8 (as the initiator) in order to produce polymer [ii]. also, we prepared new polymers [iii-v] by using the same starting material (3,3’-dimethoxybiphenyl-4,4’-diamine) with glutaric acid or adipic acid or isophthalic acid in dmf and pyridine. in this study, new polymer blending [vi-ix] and [x-xiii] were synthesized from a prepared polymer [ii-v] mixed with different polymers [polyvinyl alcohol (a synthetic polymer) or chitosan (a natural polymer), respectively. then it was mixed with silica nanoparticles to produce newly nanocomposites [xiv-xviii] and study their effect on two types of bacteria then compare with amoxilline as antibiotic drug. the anticancer activity human breast cancer cell line (mcf-7) of some prepared polymers were also studied and compare with normal cell line rat embryonic fibroblasts(ref).