Effect of sodium lauroyl sarcosinate on the thermal, optical and moisture absorption properties of polyvinylpyrrolidone film

In the present study, polyvinylpyrrolidone films containing amino acid-based surfactant, namely, sodium lauroyl sarcosinate (SLS), were prepared by casting method. The obtained (PVP/SLS) characterized means of attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), optical properties, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and moisture absorption (MA). ATR-FTIR spectra PVP/SLS showed main bands PVP. opacity PVP increased with addition SLS. Furthermore, higher than pristine film. TGA curves displayed that thermal stability film decreased after incorporation DSC indicated SLS can be used as plasticizer for