five new aromatic poly(amide-imide)s (5a-e) were synthesized by direct polycondensationreaction of n-(4-carboxy phenyl) trimellitimide (3) with five aromatic diamines (4a-e) by usingtriphenyl phosphite in n-methyl-2-pyrrolidone (nmp) and pyridine at solution containingdissolved cacl2. all of the polymers were obtained in quantitative yields with inherentviscosities between 0.29-0.40 dl/g. the r...

The physical and antibacterial properties of ophthalmic lenses fabricated by copolymerization with hydrogel monomers using two types graphene were measured, their usability as contact lens materials was analyzed. For polymerization, silicone monomers, including SID-OH, 3-(methacryloxy)propyl tris(trimethylsiloxy)silane, decamethylcyclopentasiloxane, used, N,N-dimethylacetamide, ethylene glycol ...

Abstract The effect of 3D printed modified Chitosan membranes on bacterial strains by water filtration system was explored in this study. Specifically, it focused the characterisation Chitosan–graphene oxide–silver nanoparticles (CS–GO–AgNP) composite and effects Dimethylacetamide (DMAc) used as co-solvent performance CS–GO–AgNP nanocomposites. It also examined impact GO–AgNP CS matrix for inhi...