Morphology and electrical properties of conductive nanocomposite coated PMMA

An electrically conductive polythiophene (PTh) and polypyrrole (PPy) layer was deposited on poly methyl methacrylate (PMMA) substrate by in-situ chemical oxidative deposition method. The main goal in this study is increase the conductivity of polymeric layer by using conductive layers with carbon nano tubes (CNT). Therefore, bilayers of PTh and PPy in the presence of CNT were deposited on PMMA substrate to improve conductivity. Based on electrical properties the reaction time was to set 15 minutes for the synthesis of nanocomposite. The morphology of layers was investigated using SEM and the conductivity of layers was measured using a four point probe device. The lowest electrical resistance was observed for the two layer of polythiophene-polypyrrole/CNT on the PMMA substrate (0.63 KΩ).

کلیدواژه ها:

polythiophene ، polypyrrole ، poly methyl(meth)acrylate ، conductive polymer ، electrical resistance ، nano composite ، carbon nanotube