Publication Details (including relevant citation information):
L. Ravikumar, I. Pradeep, T. Thangaiyan, R. Mohan, J. Balachandran, Inter national Journal of Polymeric Mate rials, 61:288–299, 2012
Three new polyazomethines having phenylthiourea groups were synthesized through solution polycondensation of terephthalaldehyde with 4,4 0-bis(thiourea)biphenyl ether, 4,4 0-bis(thiourea)biphenylmethane, and 4,4 0-bis(thiourea)biphenyl sulphone. For comparison purposes, simple polyazomethines were prepared by the polycondensation of terephthalaldehyde with 4,4 0-diaminodiphenyl ether, 4,4 0-diaminodiphenylmethane, and 4,4 0-diaminodiphenyl sulphone. Poly(imine)s having phenylthiourea groups were characterized through IR and 1H-NMR spectroscopic methods and the thermal stability of the polymers were evaluated through TGA analysis. Conductivity of polyaniline synthesized in aqueous p-toluenesulfonic acid was found to be 3.83 Scm 1. The conductivity of the polymeric blends with polyaniline dopped with p-toluenesulfonic acid and HCl (20 % by weight) were found to be in the range 0.16 103 5.7 103 Scm1.