Synthetic resins. XIII. Synthesis and characterization of the resins derived from quinacetophenone/substituted benzoic acid/furfuraldehyde

A number of resin copolymers have been synthesized by condensing resacetophenone with substituted benzoic acids and furfural in the presence of some base as catalyst. The resins have been characterized by IR spectra of the characteristic groups. The number-average molecular weights of the resins have been determined by the conductance method. The solubility and viscosity behavior of the resins have been determined. Cu2+, Ni2+, Co2+, Mn2+, Zn2+, and Mg2+ chelates have been prepared. The resins were shown to be selective ion exchangers for certain metal ions. The batch equilibrium method was used to study the selectivity of the metal ions. The thermal behavior of the resins has been determined. The values of energy of activation of the degradation of the resins were computed by using the Freeman-Anderson and Broido methods. The biological assays of some of the resins have been evaluated, and some of them were found to be highly sensitive to the bacteria studied.