A STUDY OF THE PERFORMANCE OF SOME 1ST ROW TRANSITION-METAL COMPLEXESOF NONYLAMINE AS COLORANTS FOR POLY(VINYL CHLORIDE) AND POLYETHYLENE

Complexes of nonylamine with the isothiocyanate of cobalt (II) and the chlorides of cobalt (II), nickel (II) and copper (II) have been prepa red in ethanolic solution. The complexes have a stoichiometry of ML2X2 . The cobalt compounds have tetrahedral structures, whereas the nickel and copper compounds have polymeric octahedral structures. The decomp osition temperatures of each of the compounds was obtained. The perfor mance of the complexes as colouring materials for poly(vinyl chloride) (PVC) and polyethylene (PE) has been investigated; for example, weath ering resistance, lightfastness, n-Ligration resistance and heat stabi lity have been considered. The compound Co(C9H21N)2(NCS)2 performed we ll giving good results for weathering resistance, acid and alkali resi stance, migration resistance, dispersibility and opacity in both PVC a nd PE.