“…4, a number of absorption peaks for SCC observed at 3,424, 2,927, 2,858, 1,576, 1,420, 1,260 and 781 cm -1 represent N-H stretching of primary aromatic amine, [CH 2 asymmetrical stretching, symmetrical stretching [CH 2 group, skeletal vibration of aromatic C=C, deformational vibration of =C-H of alkenes, C-N stretching of aromatic primary amine and -C-H out of plane deformation of aromatic compounds, respectively (Kemp 1996;Furniss et al 2005;Ghosh 2006). After treatment with thioglycolic acid, a significant decrease of these bands was noted in the spectrum of TSCC along with two new peaks at 1,702 and 1,094 cm -1 indicating C=O stretching of saturated acid (Furniss et al 2005;Ghosh 2006) and C-S axial stretching (Papaleo et al 1996) of thioglycolic acid. Moreover, the absence of the characteristic frequency at 1,420 cm -1 also shows the existence of structural disorder which has been explained as a result of chemical interaction between alkene groups of SSC and thioglycolic acid at its surface.…”