Conductive biodegradable film of N-octyloxyphenyl-N′-(4-methylbenzoyl)thiourea

Thiourea derivatives are versatile family of ligands which provides wide range of electronic properties since they consist of rigid π-systems on their structures. In this work, a new type of thiourea compound with general formula Me-C6H4C(O)NHC(S)NHC6H4-OC8H17 of N′-(4-methylbenzoyl)thiourea (MBTU) was successfully synthesised and characterized by using NMR, FTIR and UV–vis analysis. The development of new conductive biodegradable film based on MBTU has been accomplished by incorporating chitosan to the polymer-dopant system via solution-cast technique. The impedance measurement technique was employed to determine conductivity of biodegradable film. It shows that, with the addition of MBTU, the increasing of conductivity is from 10 −9 to 10 −8 Scm −1 . TNM results show that the conductivity of biodegradable film is governed by electronic conducting species. It is proven that MBTU compound exhibits promise and has great potential to be explored and used as doping system in conductive materials application in the future.