Novel Assemblies of Organo-Soluble Aromatic Polyamides Containing Copper(II) Coordination Complex Units in the Main Chain

This research was primarily focused on investigating the possibility of the production of novel organo-soluble polyamides with coordination metal complex units in the main chain. Using a copper(II) coordination complex as a monomer, a novel Cu(II)-containing polyamide was synthesized by polycondensation with m -phenylenediamine. The obtained polyamide with Cu(II) ions in the main chain had an inherent viscosity of 0.20 dL/g, which indicated that it was a low molecular weight polymer. Then the p -phthalic acid monomer was introduced to the above synthesis system to create a Cu(II)-containing co-polyamide with a higher molecular weight. The subsequent addition of p -phthalic acid resulted in the formation of a series of co-polyamides with different contents of the Cu-complex in the main chain, which had higher inherent viscosity. The structures of the Cu(II)-containing polymers were characterized by ICP and 1 H-NMR. The prepared co-polyamides had increased solubility in organic solvents. It also revealed that the UV absorption properties of co-polyamides were enhanced significantly by the incorporation of Cu(II) ions into the polymer chain.