Synthetic resins VIII. Preparation and characterization of p‐aminoacetophenone/substituted benzoic acid/formaldehyde resins

A number of resins has been prepared by condensing p‐amino‐acetophenone (p‐AAph) with substituted benzoic acid such as m‐toluic acid (m‐TA), o‐toluic acid (o‐TA), phthalic acid (PhA), p‐nitrobenzoic acid (p‐NBA), p‐chlorobenzoic acid (p‐CIBA) and formaldehyde (F) in presence of some acids and bases as catalysts. The resins were characterized by infrared spectra of the characteristic groups. The solubility parameters were calculated from Small's group contribution which agreed well with the experimental values. The thermal behaviour and the bacteriological properties of the resins have also been investigated.