Abstract
Hydrophobic surfaces of poly(ethylene terephtalate) films were modified by using a mild wet chemical procedure with triethylenetetramine as a reagent. The chemical composition was determined by Fourier transform infrared (FTIR) spectroscopy. With the aim of obtaining the depth profile of the newly created species the variable angle attenuated total reflectance (ATR)–FTIR spectroscopy was used. The most important functionalities resulting from the aminolysis that we chose to monitor were amide groups. By varying the incidence angle of the infrared radiation, chemical changes were investigated from layers of different thicknesses. It was observed that the absorption bands attributed to amide moieties became weaker with increasing analyzed depth, with a pronounced heterogeneity near the surface. By assuming an exponential decay for the depth profile spectrally obtained, the surface concentration of amide groups and the decay constant were determined for the reaction times used.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
