EFFECT OF COPOLYMER COMPOSITION IN VINYL SILANE MODIFIED POLYVINYLIMIDAZOLE ON COPPER CORROSION PROTECTION AT ELEVATED-TEMPERATURE

The copolymer of vinyl imidazole (VI) and vinyl trimethoxy silane (VTS ), was synthesized in benzene at 68 degrees C as a novel corrosion inh ibitor for copper. The effect of the copolymer composition on copper c orrosion protection at elevated temperatures was investigated by Fouri er transform infrared reflection, absorption spectroscopy (FTIR-RAS) a nd scanning electron microscopy (SEM). In addition, an adhesion test w as performed to characterize the interface between copper and the poly mer film after heat treatment. Corrosion protection capabilities of th e copolymer at 360 degrees C in air was improved via increasing the mo l ratio of VTS in the feed, due to the improved thermal stability and the reactivity of the copolymer with copper. (C) 1998 Elsevier Science Ltd. AU rights reserved.